Refimprove date July 2009 Hygroscopy is the ability of a substance to attract and hold water molecule s from the surrounding Natural environment environment . This is achieved through either absorption chemistry absorption or adsorption with the absorbing or adsorbing material becoming physically changed, somewhat, by an increase in volume, stickiness, or other physical characteristic of the material, as water molecules become suspended between the material s molecules in the process. While some similar forces are at work here, it is different from capillary attraction, a process where glass or other solid substances attract water, but are not changed in the process for example, water molecules becoming suspended between the glass molecules . Hygroscopic substances include sugar , caramel , honey , glycerol , ethanol , methanol , diesel fuel , sulfuric acid , methamphetamine , many Salt chemistry salt s including sodium chloride table salt , and a huge variety of other substances. Zinc chloride and calcium chloride , as well as potassium hydroxide and sodium hydroxide and many different Salt chemistry salt s , are so hygroscopic that they readily dissolve in the water they absorb This property is called Hygroscopy Deliquescence deliquescence . Not only is Sulfuric acid hygroscopic in high concentrated form but its solutions are hygroscopic down to concentrations of 10 Vol or below. A hygroscopic material will tend to become damp and cake when exposed to moist air such as salt in salt shakers during humid weather . Because of their affinity for atmospheric moisture , hygroscopic materials might necessitate their being stored in sealed containers. When added to foods or other materials for the express purpose of maintaining moisture content , such substances are known as humectant s. Materials and compounds exhibit different hygroscopic properties, and this difference ... or expansion. A common example where differences in hygroscopy can be seen is a plastic ... more details
In telecommunication , a filled cable is a cable that has a Hygroscopy nonhygroscopic material, usually a gel called icky pick , inside the jacket or sheath. The nonhygroscopic material fills the spaces between the interior parts of the cable, preventing moisture from entering minor leaks in the sheath and migrating inside the cable. A metallic cable, such as a coaxial cable or a metal waveguide , filled with a dielectric material, is not considered as a filled cable. References FS1037C MS188 Category Signal cables telecomm stub ... more details
orphan date January 2011 Weighing bottles are Laboratory glassware glass laboratory equipment used for precise weighing of solid s. Most of the glass used in the bottles is thin and fragile glass, but sometimes they are also made of ceramics or plastics . Dishes tend to have many different shapes. The three most popular are Flat glass dish, which is equipped with a ground cover. In the case of a bowl in which the weighed substances are Hygroscopy hygroscopic and decomposed when exposed to moisture or in contact with air, the sample is bottled in an atmosphere of nitrogen , and then weighed in the sealed glass container. Flat boat dish is a oblong, flat bottomed dish, in which it is easy to weigh out the substance, and then move it the reaction chamber, but is not recommended for hygroscopic or air reactive samples. A tall shaped dish it is elongated, oblong, flat bottomed dish, used when the solid is transferred without a funnel . Laboratory equipment Category Laboratory glassware ca Pesafiltres zh ... more details
refimprove date April 2011 File Burning incense.jpg thumb right Nag Champa incense stick burning Nag Champa is an India n fragrance, commonly found in incense , soap , perfume perfume oil , essential oils , candle s and personal toileteries originating there. It is commonly used in ashram s. Composition and properties Indian incenses containing Plumeria , known in the West as Frangipani, have Champa in their name. Champa incenses contain a semi liquid resin, halmaddi, taken from the Ailanthus Malabarica tree, which gives them their characteristic grey color and damp texture halmaddi is Hygroscopy hygroscopic . The resin also contains a psychoactive beta carboline . Nag Champa contains a large proportion of sandalwood . Nag Champa remains perhaps the world s most popular incense, historically with the ashram of the late Satya Sai Baba . Nag Champa has a strong individual smell that cannot be found in any other incense fragrances, generally starting with a potent smell that changes to a cool sweet smell as time passes. Trivia Bob Dylan has burned Nag Champa at his concerts, and as such it is popular among Bob Dylan enthusiasts. The Grateful Dead and more recently Akron Family , The Black Crowes , and Third Eye Blind have been found to burn Nag Champa at performances. Stevie Nicks refers to Nag Champa in her song Illume 9 11 , on the Fleetwood Mac album Say You Will . Rapper Common artist Common has a song entitled Nag Champa Afrodisiac for the World on his album Like Water for Chocolate album Like Water for Chocolate . Asher Roth also mentions Nag Champa on the song Change Gon Come with Charles Hamilton rapper Charles Hamilton and B.o.B. from B.o.B. s mixtape The Unclearables . References references Category Incense de Nag Champa es Nag Champa fr Nag champa nl Nag champa ... more details
Chembox IUPACName Pertechnetic acid Section1 Chembox Identifiers PubChem 11805084 PubChem Ref Pubchemcite correct pubchem ChemSpiderID 9979749 ChemSpiderID Ref chemspidercite correct chemspider SMILES O Tc O O O StdInChI 1S H2O.3O.Tc h1H2 q 1 p 1 StdInChI Ref stdinchicite correct chemspider StdInChIKey UTQISYNNAQMRBN UHFFFAOYSA M StdInChIKey Ref stdinchicite correct chemspider Section2 Chembox Properties H 1 O 4 Tc 1 ExactMass 162.99 g mol sup 1 sup Pertechnetic acid HTcO sub 4 sub is a compound chemistry compound of technetium that is produced by reacting technetium VII oxide Tc sub 2 sub O sub 7 sub with water or oxidizing acid s, such as nitric acid , concentrated sulfuric acid , aqua regia , or a mixture of nitric and hydrochloric acids. ref harvnb Schwochau 2000 p 127 ref The resulting dark red, Hygroscopy hygroscopic water attracting substance is a strong acid and easily donates protons. ref cite book url http books.google.com books?id BHjxH8q9iukC&pg PP1 author Schwochau, K. title Technetium chemistry and radiopharmaceutical applications publisher Wiley VCH year 2000 isbn 3527294961 ref CITEREFSchwochau2000 ref In the concentrated sulfuric acid Tc VII tetraoxidotechnetate pertechnetate anion is unstable and undergo conversion to octahedral form of technetic VII acid TcO sub 3 sub OH H sub 2 sub O sub 2 sub 30 References Reflist Technetium compounds Category Mineral acids Category Technetium compounds ja pl Kwas nadtechnetowy ru zh ... more details
chembox Verifiedfields changed verifiedrevid 401957546 ImageFile Choline chloride skeletal.png ImageName Choline chloride IUPACName 2 hydroxy N , N , N trimethylethanaminium chloride OR 2 hydroxyethyl trimethylammonium chloride Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 5974 ChEMBL Ref ebicite changed EBI ChEMBL 282468 UNII Ref fdacite correct FDA UNII 45I14D8O27 InChI 1 C5H14NO.ClH c1 6 2,3 4 5 7 h7H,4 5H2,1 3H3 1H q 1 p 1 InChIKey SGMZJAMFUVOLNK REWHXWOFAH StdInChI Ref stdinchicite correct chemspider StdInChI 1S C5H14NO.ClH c1 6 2,3 4 5 7 h7H,4 5H2,1 3H3 1H q 1 p 1 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey SGMZJAMFUVOLNK UHFFFAOYSA M CASNo 67 48 1 CASNo Ref cascite correct CAS ChEBI Ref ebicite changed EBI ChEBI 133341 SMILES Cl .OCC N C C C PubChem 522265 Section2 Chembox Properties C 5 H 14 Cl 1 N 1 O 1 Appearance White or hygroscopy deliquescent crystals Density MeltingPt 302 C decomposes BoilingPt Solubility very soluble 650 g l ref name www.inchem.org cite web url http www.inchem.org documents sids sids 67481.pdf title Chemical Safety Information from Intergovernmental Organizations Choline Chloride format work accessdate ref Section7 Chembox Hazards ExternalMSDS http physchem.ox.ac.uk MSDS CH choline chloride.html External MSDS NFPA H 2 NFPA F 0 NFPA R 0 NFPA O Choline chloride is an organic compound and a quaternary ammonium salt . It has a choline cation with chloride anion. Alternative names are hepacholine, biocolina and lipotril. Synthesis In the laboratory choline can be prepared by methylation of dimethylethanolamine with methyl chloride . In the industrial Davy Process Technology route choline chloride is produced from ethylene oxide , hydrochloric acid , and trimethylamine , ref http www.davyprotech.com default.aspx?cid 420 Davy Process Technology ref or from the pre formed salt ref cite web url http www.inchem.org documents sids sids 67481.pdf work Screening Information Data Set SI ... more details
Image Instant Mashed Potatoes.jpg file thumb right 180px Instant mashed potatoes packaged in a box Instant mashed potatoes are potato es that have been through an industrial process of cooking, mashing and dehydrating to yield a packaged convenience food that can be Food processing reconstituted in the home in seconds by adding hot water or milk , producing a close approximation of mashed potato es with very little expenditure of time and effort. Apart from plain mashed potato, they are available in many different flavors, such as onion, chive, garlic, and butter. Instant mashed potatoes are occasionally packaged with instant gravy. Mashed potatoes can be reconstituted from flour Other flours potato flour , but the process is made more difficult by lumping a key characteristic of instant mashed potatoes is that it is in the form of flakes or granules, eliminating the chunkiness. Analogous to instant mashed potatoes are instant poi food poi made from taro and instant fufu made from yam vegetable yams or yam substitutes including cereal s. Poha rice Poha , an instant rice mush, is also much in the same spirit, as more broadly are other instant porridge s, formed from flakes, granules, or pearls to avoid lumping. Brands include Smash instant mashed potato Smash and Idahoan mashed potatoes . Flaked instant mashed potatoes are the most common found in the local US Canadian stores. Granulated or Potato Pearls are generally reserved more for institutional or restaurant use. Granulated mashed potatoes can be found in some wholesale clubs or are available through those that carry dehydrated or survival foods. Unlike the flaked mashed potatoes, both of the granulated and pearls will be more Hygroscopy hygroscopic when it mixes with water. They will generally have an improved flavor, higher yields, and a firmer mix, in that regard. Fact date March 2008 History The practice of drying and grinding starch y root vegetable s for food preservation preservation and portability is wi ... more details
chembox verifiedrevid 396306603 Reference ref name perry citation first1 Dale L. last1 Perry first2 Sidney L. last2 Phillips title Handbook of Inorganic Compounds publisher CRC Press year 1995 . ref ref name chtas citation first1 F. last1 Brezina first2 J. last2 Mollin first3 R. last3 Pastorek first4 Z. last4 Sindelar title Chemicke tabulky anorganickych sloucenin publisher SNTL year 1986 . ref ImageFile cesium perchlorate.png ImageSize 150px ImageFile1 Cesium perchlorate 25g.jpg IUPACName Caesium perchlorate OtherNames Cesium perchlorate Section1 Chembox Identifiers InChI 1 ClHO4.Cs c2 1 3,4 5 h H,2,3,4,5 q 1 p 1 SMILES Cs . O Cl O O O InChIKey WKDKOOITVYKILI REWHXWOFAB StdInChI Ref stdinchicite correct chemspider StdInChI 1S ClHO4.Cs c2 1 3,4 5 h H,2,3,4,5 q 1 p 1 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey WKDKOOITVYKILI UHFFFAOYSA M CASNo Ref cascite correct ?? CASNo 13454 84 7 EINECS 236 643 0 ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 109912 PubChem 3035378 Section2 Chembox Properties Cs 1 Cl 1 O 4 Formula CsClO sub 4 sub MolarMass 232.36 g mol Appearance Colorless crystalls Density 3.327 g cm sup 3 sup MeltingPt 250 C decomp. Solubility 1.974 g 100 ml 25 C Section3 Chembox Structure CrystalStruct orthorhombic 219 C br Cubic crystal system cubic 219 C, a 798 pm SpaceGroup Pnma 219 C br F43m 219 C LattConst a 982 pm LattConst b 600 pm LattConst c 779 pm orthorhombic, 219 C Coordination Section7 Chembox Hazards ExternalMSDS http www.espimetals.com msds s cesiumperchlorate.pdf External MSDS EUIndex not listed FlashPt non flammable Section8 Chembox Related OtherAnions Caesium chloride br Caesium chlorate OtherCations Lithium perchlorate br Sodium perchlorate br Potassium perchlorate br Rubidium perchlorate Caesium perchlorate , CsClO sub 4 sub also known as cesium perchlorate , is a perchlorate of caesium . It forms white Hygroscopy hygroscopic crystals, which are soluble in water and ethanol . CsClO sub 4 su ... more details
chembox verifiedrevid 443385694 Name Ammonium hexachloroplatinate ImageFile Ammonium hexachloroplatinate.png ImageSize 200px ImageName Ammonium hexachloroplatinate IUPACName Ammonium hexachloroplatinate IV OtherNames ammonium chloroplatinate Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 10628022 InChI 1 6ClH.2H3N.Pt h6 1H 2 1H3 q 4 p 4 rCl6Pt.2H3N c1 7 2,3,4,5 6 h 2 1H3 q 2 p 2 ChEBI Ref ebicite correct EBI ChEBI 59604 SMILES NH4 . NH4 .Cl Pt 2 Cl Cl Cl Cl Cl InChIKey PCCGQTHFYHJATL WPAIPAOFAY StdInChI Ref stdinchicite correct chemspider StdInChI 1S 6ClH.2H3N.Pt h6 1H 2 1H3 q 4 p 4 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey PCCGQTHFYHJATL UHFFFAOYSA J CASNo 16919 58 7 Section2 Chembox Properties Formula NH sub 4 sub sub 2 sub PtCl sub 6 sub MolarMass 443.87 g mol Density 3.07 g cm sup 3 sup MeltingPt Solvent other solvents SolubleOther 0.5 g 100 mL 20 C br 3.365 g 100 mL 100 C Ammonium hexachloroplatinate , also known as ammonium chloroplatinate, is a chemical compound with the formula NH sub 4 sub sub 2 sub PtCl sub 6 sub . It is a rare example of a soluble platinum IV salt chemistry salt that is not hygroscopy hygroscopic . It forms intensely yellow solutions in water. In the presence of 1M ammonium chloride NH sub 4 sub Cl , its solubility is only 0.0028 g 100 mL. Preparation and structure The compound consists of separate tetrahedral molecular geometry tetrahedral ammonium cations and octahedral molecular geometry octahedral PtCl sub 6 sub sup 2&minus sup anions. It is usually generated as a fine yellow precipitate by treating a solution of chloroplatinic acid hexachloroplatinic acid with a solution of an ammonium salt. ref name Kauuf cite journal title Ammonium Hexachloroplatinate IV author George B. Kauffman year 1967 journal Inorganic Syntheses volume 9 pages 182 185 doi 10.1002 9780470132401.ch51 last2 Thurner first2 Joseph J. last3 Zatko first3 David A. ref The complex is so poorly soluble that ... more details
A material material s Property metaphysics property is an intensive quantity intensive , often quantitative property of a material, usually with a unit of measurement unit that may be used as a Metric mathematics metric of value to compare the benefits of one material versus another to aid in materials selection . A material property may be a Physical constant constant or may be a function of one or more independent variables , such as temperature. Material s properties often vary to some degree according to the direction in the material in which they are measured a condition referred to as anisotropy . Materials properties that relate two different physical phenomena often behave linearly or approximately so in a given operating range , and may then be modeled as a constant for that range. This linearization can significantly simplify the differential equations differential constitutive equation s that the property describes. Some material s properties are used in relevant equations to determine the attributes of a system A priori and a posteriori a priori . For example, if a material of a known specific heat gains or loses a known amount of heat, the temperature change of that material can be determined. Materials properties may be determined by standardized test method s. Many such test methods have been documented by their respective user communities and published through ASTM International . Acoustical properties Absorption acoustics Acoustical absorption Speed of sound Atomic properties Atomic mass Atomic number applies to pure elements only Atomic weight applies to individual isotope s or specific mixtures of isotopes of a given element. Chemical properties main Chemical property Corrosion resistance Hygroscopy pH Reactivity chemistry Reactivity BET theory Specific internal surface area Surface energy Surface tension Electrical properties Conductivity Dielectric constant Dielectric strength Electrical conductivity Permeability electromagnetism Permeability Pe ... more details
Goldbeater s skin the outer membrane of calf s intestine is a parchment traditionally used in the process of making gold leaf by beating, reducing gold into mere 1 m thick leaves. Up to 120 sheets of gold laminated with goldbeater s skin can be beaten at the same time, since the skin is thin, elastic and does not tear under heavy goldbeating . To manufacture goldbeater s skin, the gut of oxen or other cattle is soaked in a dilute solution of potassium hydroxide , washed, stretched, beaten flat and thin, and treated chemically to prevent putrefaction . A pack of 1,000 pieces of goldbeater s skin requires the gut of about 400 oxen, and is only 1 inch thick. Uses Goldbeater s skin is used as the sensitive element in hygrometer s, since, due to its hygroscopy hygroscopic property, variations in atmospheric humidity cause skin contraction or expansion. Alexander Graham Bell used a drum of goldbeater s skin with an armature of magnetised iron attached to its middle as a sound receiver see Invention of the telephone and the North German Confederation printed 10 and 30 groschen postage stamp s on goldbeater s skin, to prevent reuse of these high value stamps. Joseph Thomas Clover invented an apparatus for the inhalation of chloroform in 1862 which consisted of a large reservoir bag lined with goldbeater s skin to make it airtight, into which a known volume of liquid chloroform was injected. ref Sykes WS 1960 . Essays on the First Hundred Years of Anaesthesia , Vol. 2, Churchill Livingstone, Edinburgh. ISBN 0 443 02866 4, p. 8. ref Due to its transparency, strength, and fairly uniform thickness, goldbeater s skin is also used to repair holes and tears in manuscripts written on vellum . In the early 1900s decade 1900s large quantities of goldbeater s skin were used to make the gas bags of rigid airship s, exhausting the available supply about 200,000 sheets were used for a typical World War I Zeppelin , while the USS Shenandoah ZR 1 USS Shenandoah needed 750,000 sheets. ... more details
chembox verifiedrevid 445803924 Name Copper II fluoride ImageFile Copper II fluoride unit cell 3D balls.png ImageSize 200px ImageName Ball and stick model of the unit cell of copper II fluoride ImageFile1 Copper II fluoride layer 3D balls.png ImageSize1 200px ImageName1 Ball and stick model of part of a layer in the crystal structure of copper II fluoride ImageFile2 Copper II fluoride layers 3D balls.png ImageSize2 200px ImageName2 Ball and stick model of two layers stacked in the crystal structure of copper II fluoride ImageFile3 Fluorid m nat .PNG ImageSize3 200px ImageName3 Actual picture IUPACName Copper difluoride OtherNames Cupric fluoride Copper fluoride Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 74214 InChI 1 Cu.2FH h 2 1H q 2 p 2 InChIKey GWFAVIIMQDUCRA NUQVWONBAF SMILES Cu 2 . F . F StdInChI Ref stdinchicite correct chemspider StdInChI 1S Cu.2FH h 2 1H q 2 p 2 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey GWFAVIIMQDUCRA UHFFFAOYSA L CASNo Ref cascite correct ?? CASNo 7789 19 7 CASRef cascite ?? ?? CASOther br 13454 88 1 dihydrate PubChem 82236 Section2 Chembox Properties Formula Copper Cu Fluorine F sub 2 sub MolarMass 101.543 g mol anhydrous br 137.573 g mol dihydrate Appearance White crystalline powder br When Water of crystallization hydrated Blue Density 4.23 g cm sup 3 sup anhydrous br 2.934 g cm sup 3 sup dihydrate ref Pradyot Patnaik. Handbook of Inorganic Chemicals . McGraw Hill, 2002, ISBN 0 07 049439 8 ref Solvent other solvents SolubleOther Hygroscopy Hygroscopic MeltingPt 836 C anhydrous br 130 C dihydrate, decomposes BoilingPt 1676 C anhydrous Section8 Chembox Related OtherAnions Copper II bromide br Copper II chloride OtherCations silver II fluoride br cobalt II fluoride OtherCpds Copper I fluoride Copper II fluoride is an inorganic compound with the chemical formula CuF sub 2 sub . It is a white or green, crystalline, hygroscopic solid. It has a rutile type crystal structure si ... more details
About the sugar product merge from Natural brown sugar date November 2011 Image Brown sugar crystals.JPG thumb Brown sugar crystals. Image Brown sugar examples.JPG thumb Brown sugar examples Muscovado top , dark brown left , light brown right Brown sugar is a sucrose sugar product with a distinctive brown color due to the presence of molasses . It is either an unrefined or partially refined soft sugar consisting of sugar crystal s with some residual molasses content, or it is produced by the addition of molasses to refined sugar white sugar . Brown sugar contains from 3.5 molasses light brown sugar to 6.5 molasses dark brown sugar based on total volume . Based on total weight , regular brown sugar contains up to 10 molasses. ref name figoni.fundamentals.baking.science cite book author Paula I. Figoni title How Baking Works Exploring the Fundamentals of Baking Science publisher Wiley location New York year 2010 page 171 isbn 0 470 39267 3 url http books.google.com books?id XqKF7PqV02cC&pg PA171 v onepage&q&f false accessdate 2011 11 5 ref The product is naturally moist from the Hygroscopy hygroscopic nature of the molasses and is often labelled as soft. The product may undergo processing to give a product that flows better for industrial handling. The addition of dyes and or other chemicals may be permitted in some areas or for industrial products. Particle size is variable but generally less than granulated white sugar. Products for industrial use e.g., the industrial production of cakes may be based on caster sugar which has crystals of approximately 0.35 mm. Production Brown sugar is often produced by adding cane molasses to completely refined white sugar crystals in order to more carefully control the ratio of molasses to sugar crystals and to reduce manufacturing costs. ref name newsci This also allows the production of brown sugars to be based predominantly on beet sugar. Brown sugar that is prepared in this manner is often much coarser than its unrefined equiv ... more details
Image White primer bucket.jpg 250px thumb right A bucket of primer Refimprove date February 2010 A primer is a preparatory coating put on materials before paint ing. Priming ensures better adhesion of paint to the surface, increases paint durability, and provides additional protection for the material being painted. removed statement about the word primer coming from Latin. To prime or a primer has meant to prepare or a preparer for hundreds of years, although it originally came from Latin, it does not directly mean a type of paint. When primers are used Primer is a paint product that allows finishing paint to adhere much better than if it were used alone. For this purpose, primer is designed to adhere to surfaces and to form a binding layer that is better prepared to receive the paint. Because primers do not need to be engineered to have durable, finished surfaces, they can instead be engineered to have improved filling and binding properties with the material underneath. Sometimes, this is achieved with specific chemistry, as in the case of aluminum primer, but more often, this is achieved through controlling the primer s physical properties such as porosity, tackiness, and hygroscopy . In practice, primer is often used when painting many kinds of porous materials, such as concrete and especially wood see detailed description below . Priming is mandatory if the material is not water resistant and will be exposed to the elements. Priming gypsum board drywall is also standard practice with new construction because it seals the wall and aids in preventing mold . Primers can also be used for dirty surfaces that, for some reason, cannot be cleaned, or before painting light colors over existing dark colors. Primers can usually be tinted to a close match with the color of the finishing paint. If the finishing paint is a deep color, tinting the primer can reduce the number of layers of finishing paint that are necessary for good uniformity across the painted surface. Prim ... more details
chembox verifiedrevid 432969756 Name Sodium bisulfate ImageFileL1 Sodium bisulfate.svg ImageSizeL1 120px ImageNameL1 One sodium cation and one hydrogensulfate anion ImageFileR1 Sodium bisulfate 3D balls ionic.png ImageSizeR1 120px ImageNameR1 Ball and stick model of the component ions ImageFile2 Sodium Bisulfate.jpg ImageSize2 150px ImageName2 Sodium bisulfate, as a white powder, turns indicator paper red. IUPACName Sodium hydrogen sulfate OtherNames Sodium acid sulfate br Bisulfate of soda Section1 Chembox Identifiers CASNo 7681 38 1 CASNo Ref cascite correct CAS CASNo1 10034 88 5 CASNo1 Comment monohydrate PubChem 7681 38 1 RTECS VZ1860000 EINECS 231 665 7 Section2 Chembox Properties Formula NaHSO sub 4 sub MolarMass 120.06 g mol anhydrous br 138.07 g mol monohydrate Appearance white solid Density 2.742 g cm sup 3 sup anhydrous br 1.8 g cm sup 3 sup monohydrate Solubility 50 g 100 mL 0 C br 100 g 100 mL 100 C SolubleOther insoluble in ammonia decomposed by alcohol pKa 1.99 MeltingPt 58.5 C monohydrate br 315 C anhydrous BoilingPt decomposes to sodium pyrosulfate Na sub 2 sub S sub 2 sub O sub 7 sub H sub 2 sub O at 315 C Section3 Chembox Structure CrystalStruct triclinic anhydrous br monoclinic monohydrate Section7 Chembox Hazards ExternalMSDS http msds.chem.ox.ac.uk SO sodium hydrogen sulfate.html External MSDS EUIndex Corrosive C MainHazards NFPA H 1 NFPA F 0 NFPA R 1 FlashPt Non flammable RPhrases R34 R37 R41 SPhrases S26 S36 S37 S39 S45 Section8 Chembox Related OtherAnions Sodium sulfate OtherCations Potassium bisulfate Sodium bisulfate , also known as sodium hydrogen sulfate NaHSO sub 4 sub , is an acid salt . It is a dry granular product that can be safely shipped and stored. The anhydrous form is Hygroscopy hygroscopic . Solutions of sodium bisulfate are acidic, with a 1M solution having a pH of 1. One production method involves mixing stoichiometric quantities of sodium hydroxide and sulfuric acid which react to form sodium bisulfate and water . NaOH H sub ... more details
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