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466123

Phosphoric acid

crystalline, ≥99.999% trace metals basis

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Synonym(s):

Orthophosphoric acid

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About This Item

Linear Formula:
H3PO4
CAS Number:
7664-38-2
Molecular Weight:
98.00
UNSPSC Code:
12352300
NACRES:
NA.23
PubChem Substance ID:
24870329
EC Number:
231-633-2
Beilstein/REAXYS Number:
1921286
MDL number:
MFCD00011340
eCl@ss:
38070202
Assay:
≥99.999% trace metals basis
Form:
crystalline
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vapor density

3.4 (vs air)

Quality Segment

vapor pressure

2.2 mmHg ( 20 °C), 5 mmHg ( 25 °C)

assay

≥99.999% trace metals basis

form

crystalline

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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bp

158 °C (lit.)

mp

~40 °C (lit.), 41-44 °C

density

1.685 g/mL at 25 °C (lit.), 1.830 g/mL at 25 °C

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SMILES string

OP(O)(O)=O

InChI

1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)

InChI key

NBIIXXVUZAFLBC-UHFFFAOYSA-N

Gene Information

human ... SRC(6714)

General description

Anhydrous phosphoric acid is a white solid which melts at 42.35oC to form a viscous liquid. In aqueous solution phosphoric acid behaves as a triprotic acid, having three ionizable hydrogen atoms.
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Application

Industrially, phosphoric acid may be used in pharmaceuticals, water softeners.

Packaging

Packaged in poly bottles

Other Notes

Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous).

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Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Codes

H290,H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Storage Class

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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