M5043

Sigma-Aldrich

meta-Phosphoric acid

ACS reagent, 33.5-36.5% HPO3 basis

Synonym(s):
Metaphosphoric acid
Linear Formula:
(HPO3)n
CAS Number:
EC Number:
MDL number:

grade

ACS reagent

assay

33.5-36.5% HPO3 basis

contains

57.0-63.0% NaPO3 as stabilizer

impurities

≤0.02% Substances reducing permanganate (as H3PO3

anion traces

chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.001%
sulfate (SO42-): ≤0.005%

cation traces

As: ≤1 ppm
Fe: ≤0.005%
heavy metals (as Pb): ≤0.005%

SMILES string

OP(=O)=O

InChI

1S/HO3P/c1-4(2)3/h(H,1,2,3)

InChI key

UEZVMMHDMIWARA-UHFFFAOYSA-N

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Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 3260 8 / PGIII

WGK Germany

3

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