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Phosphoric acid

Catalog No. Phosphoric_acid Name Wikipedia.org
CAS Number 7664-38-2 Website http://www.wikipedia.org/
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SYNONYMS

IUPAC name
phosphoric acid
IUPAC Traditional name
phosphoric acid
Synonyms
Orthophosphoric acid

DATABASE IDS

Chemspider ID 979
KEGG ID D05467
Wikipedia Title Phosphoric_acid
Unique Ingredient Identifier E4GA8884NN
EC Number 231-633-2
CHEBI ID 26078
CAS Number 7664-38-2
CHEMBL 1187
PubChem CID 1004

PROPERTIES

pKa 2.148, 7.198, 12.377
Apperance white solid or colourless, viscous liquid (>42 °C)
Boiling Point 158 °C (decomp)
Std enthalpy of formation -1288 kJ·mol-1
Density 1.885 g/mL (liquid)
1.685 g/mL (85% solution)
2.030 g/mL (crystal at 25 °C)
Flash Point Non-flammable
Melting Point 42.35 °C (anhydrous)
29.32 °C (hemihydrate)
Std molar entropy 158 J·mol-1·K-1
Solubility 5.48 g/mL in water
Viscosity 2.4–9.4 cP (85% aq. soln.)
147 cP (100%)
EU Index 015-011-00-6
NFPA704
NFPA 704 diagram
0
3
0
Risk Statements R34
RTECS TB6300000
Safety Statements S1/2 S26 S45
UN Number 1805

DETAILS

Description (English)

REFERENCES