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79613 Sigma-Aldrich

meta-Phosphoric acid

puriss. p.a., ACS reagent, ≥33.5% (T)

Synonym: Metaphosphoric acid

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Properties

Related Categories ACS Grade Acids & Bases, Acids, Acids & Bases, Analytical Reagents, Analytical Reagents for General Use,
Quality Level   200
grade   ACS reagent
  puriss. p.a.
assay   ≥33.5% (T)
form   crystalline
contains   57-63% NaPO3 as stabilizer
application(s)   HPLC: suitable
solubility   water: miscible
density   2 g/cm3
anion traces   chloride (Cl-): ≤10 mg/kg
  nitrate (NO3-): ≤5 mg/kg
  sulfate (SO42-): ≤20 mg/kg
cation traces   As: ≤1 mg/kg
  Ca: ≤20 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤10 mg/kg
  K: ≤50 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤5 mg/kg
SMILES string   OP(=O)=O
InChI   1S/HO3P/c1-4(2)3/h(H,1,2,3)
InChI key   UEZVMMHDMIWARA-UHFFFAOYSA-N

Description

General description

meta-Phosphoric acid is a monobasic acid.

Application

meta-Phosphoric acid may be employed as an extraction reagent during isocratic reversed-phase ion-pairing high performance liquid chromatographic analysis of ascorbic acid and dehydroascorbic acid in plant.

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
RIDADR 
UN 3260 8 / PGIII
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles

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