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Merck
CN

79613

meta-Phosphoric acid

puriss. p.a., ACS reagent, ≥33.5% (T)

Synonym(s):

Metaphosphoric acid

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About This Item

Linear Formula:
(HPO3)n
CAS Number:
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352106
MDL number:
Concentration:
≥33.5% (T)
Form:
crystalline
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Quality Level

grade

ACS reagent, puriss. p.a.

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 (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

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.


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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

flash_point_f

Not applicable

flash_point_c

Not applicable



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Articles

Research on noble bimetallic nanoparticles for glucose biosensor detection.


M A Kall et al.
Journal of chromatography. B, Biomedical sciences and applications, 730(1), 101-111 (1999-08-07)
The total vitamin C amount in different food and plasma samples was determined by a dual detection system, after HPLC separation, with direct detection of ascorbic acid and indirect fluorimetric detection of dehydroascorbic acid after a post-column O-phenyldiamine derivatisation. The



Global Trade Item Number

SKUGTIN
79613-100G04061832961910