7664-38-2 H3O4P Phosphorous acid 7664-38-2 H3O4P
Phosphorous acid Basic information |
Product Name: | Phosphorous acid |
Synonyms: | FEMA 2900;EXTRAN(R) AP 21;EXTRAN(R) AP21, ACID RINSE DETERGENT WITH PHOSPHORIC ACID;EXTRAN(R) AP21 DETERGENT;EXTRAN AP 21;H3PO4;U.N. 1805;Acide phosphorique |
CAS: | 7664-38-2 |
MF: | H3O4P |
MW: | 98 |
EINECS: | 231-633-2 |
Product Categories: | INORGANIC & ORGANIC CHEMICALS;Inorganics;HPLC;HPLC Buffer;HPLC Buffers;HPLC Buffers - SolutionChromatography/CE Reagents;Solution;PAlphabetic;Analytical Standards;NMRStable Isotopes;P;PER - POLA;Spectroscopy;Alphabetical Listings;Flavors and Fragrances;O-P;Organic Phosphonates;inorganic acid;HPLC and LCMS Mobile Phase Additive |
Mol File: | 7664-38-2.mol |
Phosphorous acid Chemical Properties |
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 |
n |
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 Information |
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) |
MSDS Information |
Provider | Language |
---|---|
Phosphorous acid | English |
SigmaAldrich | English |
ACROS | English |
ALFA | English |
Phosphorous acid Usage And Synthesis |
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 |
Phosphorous acid Basic information |
Product Name: | Phosphorous acid |
Synonyms: | FEMA 2900;EXTRAN(R) AP 21;EXTRAN(R) AP21, ACID RINSE DETERGENT WITH PHOSPHORIC ACID;EXTRAN(R) AP21 DETERGENT;EXTRAN AP 21;H3PO4;U.N. 1805;Acide phosphorique |
CAS: | 7664-38-2 |
MF: | H3O4P |
MW: | 98 |
EINECS: | 231-633-2 |
Product Categories: | INORGANIC & ORGANIC CHEMICALS;Inorganics;HPLC;HPLC Buffer;HPLC Buffers;HPLC Buffers - SolutionChromatography/CE Reagents;Solution;PAlphabetic;Analytical Standards;NMRStable Isotopes;P;PER - POLA;Spectroscopy;Alphabetical Listings;Flavors and Fragrances;O-P;Organic Phosphonates;inorganic acid;HPLC and LCMS Mobile Phase Additive |
Mol File: | 7664-38-2.mol |
Phosphorous acid Chemical Properties |
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 |
n |
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 Information |
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) |
MSDS Information |
Provider | Language |
---|---|
Phosphorous acid | English |
SigmaAldrich | English |
ACROS | English |
ALFA | English |
Phosphorous acid Usage And Synthesis |
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 |
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