MilliporeSigma
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04107

Sigma-Aldrich

Phosphoric acid

puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, 85.0-88.0%

Synonym(s):
Orthophosphoric acid
Linear Formula:
H3PO4
CAS Number:
Molecular Weight:
98.00
Beilstein:
1921286
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor density

3.4 (vs air)

vapor pressure

2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

grade

puriss.

assay

85.0-88.0%

form

liquid

quality

meets analytical specification of Ph. Eur., BP, NF, FCC

impurities

alkali phosphates, in accordance
residual solvents, in accordance
substance precip. by Ammonia, in accordance
≤0.0005% heavy metals (as Pb)
≤0.001% volatile acids (as CH3COOH)

bp

158 °C (lit.)

mp

~40 °C (lit.)

density

1.685 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 mg/kg
fluoride (F-): ≤5 mg/kg
nitrate (NO3-): ≤5 mg/kg
nitrate (NO3-): in accordance
phosphite, hypophosphite (as H3PO3): ≤30 mg/kg
phosphite, hypophosphite (as H3PO3): in accordance
sulfate (SO42-): ≤50 mg/kg
sulfate (SO42-): in accordance

cation traces

As: ≤2 mg/kg
Cd: ≤3 mg/kg
Cu: ≤10 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤3 mg/kg
Zn: ≤10 mg/kg

suitability

passes test for appearance of solution

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)

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Other Notes

Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous).
The article number 04107-4X2.5L will be discontinued. Please order the single bottle 04107-2.5L which is physically identical with the same exact specifications.
The article number 04107-6X1L will be discontinued. Please order the single bottle 04107-1L which is physically identical with the same exact specifications.

Certificate of Analysis

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Certificate of Origin

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