79613

meta-Phosphoric acid

puriss. p.a., ACS reagent, ≥33.5% (T)

• Synonym(s): Metaphosphoric acid
• Linear Formula: (HPO₃)_n
• CAS Number: 37267-86-0
• MDL number: MFCD00011351
• UNSPSC Code: 12352106
• PubChem Substance ID: 329768531
• NACRES: NA.21

Properties

• grade: ACS reagent; puriss. p.a.
• Quality Level: 200
• form: crystalline
• contains: 57-63% NaPO₃ as stabilizer
• concentration: ≥33.5% (T)
• technique(s): HPLC: suitable
• solubility: water: miscible
• density: 2 g/cm³
• anion traces: chloride (Cl^-): ≤10 mg/kg; nitrate (NO₃^-): ≤5 mg/kg; sulfate (SO₄^2-): ≤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 Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H314
• pcodes: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B
• Storage Class: 8A - Combustible corrosive hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable