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04107

Sigma-Aldrich

Phosphoric acid

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

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

vapor density

3.4 (vs air)

Quality Level

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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1 of 4

This Item
3041779622695017
Phosphoric acid puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, 85.0-88.0%

04107

Phosphoric acid

-
Phosphoric acid puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥85%

30417

Phosphoric acid

Essential Grade
Phosphoric acid puriss. p.a., crystallized, ≥99.0% (T)

79622

Phosphoric acid

-
Phosphoric acid ACS reagent, ≥85 wt. % in H2O

695017

Phosphoric acid

-
assay

85.0-88.0%

assay

≥85%

assay

≥99.0% (T)

assay

≥85% H3PO4 basis (by NaOH, titration)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

form

liquid

form

liquid

form

powder or crystals

form

liquid

cation traces

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

cation traces

As: ≤0.5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg, Cr: ≤1 mg/kg, Cu: ≤1 mg/kg, Fe: ≤5 mg/kg, K: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤0.5 mg/kg, Na: ≤20 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Sb: ≤2 mg/kg, Zn: ≤2 mg/kg

cation traces

As: ≤1 mg/kg, Ca: ≤10 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg, Cr: ≤1 mg/kg, Cu: ≤1 mg/kg, Fe: ≤10 mg/kg, K: ≤5 mg/kg, Mg: ≤1 mg/kg, Mn: ≤1 mg/kg, Na: ≤50 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Zn: ≤1 mg/kg

cation traces

As: ≤1 ppm, Ca: ≤0.002%, Fe: ≤0.003%, K: ≤0.005%, Mg: ≤0.02%, Mn: ≤0.5 ppm, Na: ≤0.025%, Sb: ≤0.002%, heavy metals: ≤0.001% (by ICP)

vapor density

3.4 (vs air)

vapor density

3.4 (vs air)

vapor density

3.4 (vs air)

vapor density

3.4 (vs air)

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.

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Internal versus external surface active sites in ZSM-5 zeolite: Part 1. Fries rearrangement catalyzed by modified and unmodified H3PO4/ZSM-5.
Ghiaci M, et al.
Applied Catalysis A: General, 298, 32-39 (2006)
J M Fujitaki et al.
Biochemistry, 20(12), 3658-3664 (1981-06-09)
Phosphorus-31 nuclear magnetic resonance (31P NMR) is used to investigate acid-labile phosphorylation of histone H4. 31P NMR detects phosphorylated histidine residues in in vitro enzymatically phosphorylated H4. The source of kinase is nuclei from either regenerating rat liver or Walker-256
D S Marinier et al.
Journal of lipid research, 29(9), 1237-1243 (1988-09-01)
In order to study the lipid composition of human white matter, we have developed a 31P NMR spectroscopy method, which allows the determination and quantitation of the main phospholipids found in biological membranes. The technique is based upon the use
P Meneses et al.
Journal of lipid research, 29(5), 679-689 (1988-05-01)
The common phospholipids from biological sources were quantitated using phosphorus-31 nuclear magnetic resonance (NMR) spectroscopy in conjunction with an analytical reagent composed of two parts: 1) 2 ml of reagent chloroform in which was dissolved 0.01-100 mg of crude tissue
Alessio Ciulli et al.
Journal of medicinal chemistry, 49(16), 4992-5000 (2006-08-04)
Mapping interactions at protein-ligand binding sites is an important aspect of understanding many biological reactions and a key part of drug design. In this paper, we have used a fragment-based approach to probe "hot spots" at the cofactor-binding site of

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