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meta-Phosphoric acid, lumps, AnalaR NORMAPUR® analytical reagent

Supplier: VWR Chemicals

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Synonyms: Metaphosphoric acid

20632.293EA 41265 INR InStock
20632.293 20632.236
meta-Phosphoric acid, lumps, AnalaR NORMAPUR® analytical reagent
meta-Phosphoric acid
Mixture of metaphosphoric acid and sodium metaphosphate (NaPO3 : 56 to 60%)


Formula: (HPO₃)n
MW: 79.98 g/mol
Boiling Pt: 260 °C (1013 hPa)
Melting Pt: 21 °C
Density: 2,4 g/cm³ (20 °C)
Storage Temperature: Ambient
 MDL Number: MFCD00011351
CAS Number: 37267-86-0
EINECS: 253-433-4
UN: 3260
ADR: 8,III
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Specification Test Results
Assay (calculated as HPO3) (39-45 %) Passes test
Assay (calculated as NaPO3) (55-61 %) Passes test
Heavy metals (as Pb) Max. 20 ppm
Substances reducing KMnO4 (as H3PO3) Max. 100 ppm
Cl (Chloride) Max. 20 ppm
SO4 (Sulphate) Max. 100 ppm
As (Arsenic) Max. 5 ppm
Ca (Calcium) Max. 100 ppm
Fe (Iron) Max. 10 ppm
Mn (Manganese) Max. 5 ppm

 

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