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1.00546 Supelco

meta-Phosphoric acid

pieces for analysis (stabilized with sodium metaphosphate) EMSURE®

Synonym: Metaphosphoric acid, m-Phosphoric acid

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Properties

Quality Level   300
vapor pressure   <0.001 hPa ( 20 °C)
pH   2 (20 °C, 33 g/L in H2O)
bp   600 °C/1013 hPa
mp   200-250 °C
density   2.0 g/cm3 at 20 °C
bulk density   1000 kg/m3
storage conditions   Store below +30°C.

Description

Analysis Note

Assay (acidimetric, HPO₃): 40 - 50 %
Assay (acidimetric, NaPO₃): 50 - 60 %
Identity: passes test
Chloride (Cl): ≤ 10 ppm
Nitrate (NO₃): ≤ 5 ppm
Reducing matter (as H₃PO₃): ≤ 100 ppm
As (Arsenic): ≤ 1 ppm
Cd (Cadmium): ≤ 10 ppm
Co (Cobalt): ≤ 5 ppm
Cu (Copper): ≤ 10 ppm
Fe (Iron): ≤ 50 ppm
Mn (Manganese): ≤ 5 ppm
Ni (Nickel): ≤ 10 ppm
Pb (Lead): ≤ 10 ppm
Zn (Zinc): ≤ 10 ppm

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety & Documentation

Safety Information

Protocols & Articles

Articles

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