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Reagent for periodate oxidimetry, for oxidimetric titration,
for histochemical polysaccharide analysis.
Paraperiodic acid


25 g (00025)

100 g (00100)

1GBA000015 1GBA000060
Article No. 05156 Grade AR
Purity 99.5% CAS No. 10450-60-9
Molecular Formula H5IO6 Molecular Weight 227.94
H.S. Code 2811.1990 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White crystalline
Odour Slight characteristic odor Melting point/ Freezing point [°C] 122 °C
Boiling point [°C] 130 - 140°C Initial boiling point [°C] 130°C
Final boiling point [°C] 140°C Vapour density 7.9
Solubility in water [% weight] Soluble in water Oxidising properties The substance or mixture is classified as oxidizing with the subcategory 2


Appearance White or almost white crystalline powder Assay (iodometric) Min 99.5%
Residue on ignition Max 0.5% Foreign halogens (as Cl) Max 0.01%
Iodide (I) Max 0.001% Sulphate (SO4) Max 0.01%

Safety Information and Hazard Symbols

Flame Over Circle Corrosion
Symbol: GHS03, GHS05
Signal Word: Danger
UN No.: 3085
IMCO Class No.: 5.1,8
Packing Group: II
Hazardous Statement: H272-H314
Precaution Statement: P220-P280-P305 + P351 + P338-P310
Revision Date: 10-Dec-2021

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