Phosphoric acid puriss. p.a. crystallized >=99.0% (T)

Name: Phosphoric acid puriss. p.a. crystallized >=99.0% (T)
Brand: SIGMA-ALDRICH
SKU: 79622-500G-M
Price: 86.58 EUR

Code: 79622-500G-M D2-231

Application

Phosphoric acid has been employed as an oxidation reagent in a study.1 It may be used in the preparation of ammonium phosphate.

Caution

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Application

Phosphoric acid has been employed as an oxidation reagent in a study.1 It may be used in the preparation of ammonium phosphate.

Caution

product may become solid, becomes liquid on heating to 50°C

General description

The product is crystalline phosphoric acid.

Other Notes

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

anion traces	nitrate (NO₃^-): ≤5 mg/kg, chloride (Cl^-): ≤5 mg/kg, sulfate (SO₄^2-): ≤30 mg/kg, phosphite, hypophosphite (as H₃PO₃): ≤500 mg/kg
assay	≥99.0% (T)
bp	158 °C (lit.)
cation traces	Na: ≤50 mg/kg, Cd: ≤1 mg/kg, Mg: ≤1 mg/kg, Ni: ≤1 mg/kg, Cr: ≤1 mg/kg, Fe: ≤10 mg/kg, Zn: ≤1 mg/kg, Ca: ≤10 mg/kg, As: ≤1 mg/kg, Pb: ≤1 mg/kg, Co: ≤1 mg/kg, Cu: ≤1 mg/kg, K: ≤5 mg/kg, Mn: ≤1 mg/kg
density	1.685 g/mL at 25 °C (lit.)
form	crystalline
grade	puriss. p.a.
impurities	≤0.002% KMnO₄-reducing matter (as O)
InChI key	NBIIXXVUZAFLBC-UHFFFAOYSA-N
InChI	1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
mp	~40 °C, ~40 °C (lit.)
quality	crystallized
SMILES string	OP(O)(O)=O
solubility	water: 850 g/L at 20 °C
vapor density	3.4 (vs air)
vapor pressure	5 mmHg ( 25 °C), 2.2 mmHg ( 20 °C)

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