Phosphorous acid

Phosphorous acid Property

mp : ~40 °C(lit.) bp : 158 °C(lit.) density : 1.685 g/mL at 25 °C(lit.) vapor density : 3.4 (vs air) vapor pressure : 2.2 mm Hg ( 20 °C) refractive index : n20/D 1.433 FEMA : 2900 solubility : H2O: soluble color : ≤10(APHA) Water Solubility : MISCIBLE Merck : 14,7344 CAS DataBase Reference: 7664-38-2(CAS DataBase Reference) NIST Chemistry Reference: Phosphoric acid(7664-38-2) EPA Substance Registry System: Phosphoric acid(7664-38-2)

Safety

Hazard Codes : C,Xn,T,F Risk Statements : 34-35-22-39/23/24/25-36/38-23/24/25-11 Safety Statements : 7-16-26-36/37-45-36/37/39-1/2-24/25 RIDADR : UN 3453 8/PG 3 WGK Germany : 3 RTECS : TB6300000 F : 3-10 HazardClass : 8 PackingGroup : III Hazardous Substances Data: 7664-38-2(Hazardous Substances Data)

Phosphorous acid Chemical Properties,Usage,Production

Chemical Properties Clear liquid Usage Phosphorous acid is used for reaction with inorganic and organic products, for water treatment, industrial and agricultural uses. It is also used to bleach industrial and cleaning supplies. Contact General Description A clear colorless liquid or transparent crystalline solid. The pure solid melts at 42.35°C and has a density of 1.834 g / cm3. Liquid is usually an 85% aqueous solution. Shipped as both a solid and liquid. Corrosive to metals and tissue. Used in making fertilizers and detergents and in food processing. Air & Water Reactions Soluble in water with small release of heat. Reactivity Profile Phosphorous acid reacts exothermically with bases. May react with active metals, including such structural metals as aluminum and iron, to release hydrogen, a flammable gas. Can initiate the polymerization of certain classes of organic compounds. Reacts with cyanide compounds to release gaseous hydrogen cyanide. May generate flammable and/or toxic gases in contact with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and strong reducing agents. Forms explosive mixture with nitromethane. Reacts violently with sodium tetrahydroborate. In the presence of chlorides can corrode stainless steel to form explosive hydrogen gas. Emits toxic and irritating fumes of oxides of phosphorus when heated to decomposition [Lewis, 3rd ed., 1993, p. 1029]. Health Hazard Burns on mouth and lips, sour acrid taste, severe gastrointestinal irritation, nausea, vomiting, bloody diarrhea, difficult swallowing, severe abdominal pains, thirst, acidemia, difficult breathing, convulsions, collapse, shock, death. Fire Hazard Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Phosphorous acid Preparation Products And Raw materials

Raw materials Phosphate rock powder Sodium molybdate dihydrate Hydrogen peroxide ROCK PHOSPHATE Barium hydroxide CALCIUM SULFATE HEMIHYDRATE Microvoid filter film Ammonium hydrogen sulfate phosphoric acid by wet process White phosphorus Phosphorus Celite

Preparation Products Phosphatizing agent Tetrabutylammonium phosphate 2-ACETYL-5-IODOTHIOPHENE Aluminum triphosphate ZINC DIHYDROGEN PHOSPHATE Ferric pyrophosphate IODOCYCLOHEXANE Pyrophosphoric acid 2-(2-Bromoethyl)-1,3-dioxolane amphoteric polyacrylamide alcohol polyoxyethylene ether phosphoric monoester ethanolamine 4,4'-BIS(BROMOMETHYL)BIPHENYL MAGNESIUM PHOSPHATE 2-Acetyl-3-methylthiophene ZINC PHOSPHATE, MONOBASIC Sewerage inhibitor Starch, phosphate non-dip adhesive nodule-holeless honeycomb structural adhesive J-23-2 Alendronic acid Cefcapene pivoxil 4-Chromanone PHOSPHOMOLYBDIC ACID HYDRATE Monosodium phosphate Aluminium phosphate Sodium hydrogenphosphate dihydrate TSP hydration catalyst for propylene Acid modified starch 4'-Ethoxyacetophenone Phosphatizing liquid SODIUM PHOSPHOTUNGSTATE AMMONIUM PHOSPHOMOLYBDATE Sodium dihydrogen phosphate Maddrell's salt for food Aluminum dihydrogen phosphate 3-METHYLTHIOPHENE-2-CARBONYL CHLORIDE 2-ACETYL-5-CYANOTHIOPHENE Conditioner for metal surface MAGNESIUM HYDROGEN PHOSPHATE TRIHYDRATE Calcium phosphate

Phosphorous acid Suppliers      Global( 344)Suppliers      Americas 1 BELGIUM 2 CANADA 2 CHINA 237 CZECH REPUBLIC 1 Europe 2 GERMANY 5 HUNGARY 1 INDIA 4 ITALY 2 JAPAN 7 MEXICO 1 Singapore 1 Slovakia 1 South Korea 2 SWITZERLAND 2 UNITED KINGDOM 11 USA 62 Global 344

Supplier Tel Fax Email Country ProdList Advantage Shanghai Macklin Biochemical Co.,Ltd. 021-51821861 021-51821727 sales@macklin.cn CHINA 9960 55 Creasyn Finechem(Tianjin) Co., Ltd. 86-22-83946278, 83945171,83945878 4008266163-06019 export@creasyn.com sale@creasyn.com CHINA 1399 68 J & K SCIENTIFIC LTD. -- -- jkinfo@jkchemical.com;market3@jkchemical.com CHINA 96847 76 Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) +86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com CHINA 40407 62 Alfa Aesar 400-610-6006; 021-67582000 021-67582001/03/05 saleschina@alfa-asia.com CHINA 30333 84 Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820 86 (10) 60270825 dtftchem@sina.com CHINA 4703 62 Energy Chemical 021-58432009 / 400-005-6266 021-58436166-800 info@energy-chemical.com CHINA 44198 61 Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028 +86-10-82967029 sales@ouhechem.com CHINA 10815 60 JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078,021-50426030 86-021-50426522,50426273 sales@jingyan-chemical.com CHINA 10108 60 Secco work (Beijing) chemical technology co., LTD 010-69755668; 62507480 010-69755668 1139670422@qq.com CHINA 3551 54