Home Categories Inorganic chemistry Potassium periodate
A6706712

Potassium periodate , ACS,99.8-100.3% , 7790-21-8

Synonym(s):
Periodic acid potassium salt;Potassium (meta)periodate;Potassium periodate

CAS NO.:7790-21-8

Empirical Formula: H2IKO4

Molecular Weight: 232.01

MDL number: MFCD00011407

EINECS: 232-196-0

Update time: 2022-07-08

PRODUCT Properties

Melting point: 582 °C
Boiling point: explodes [HAW93]
Density  3.618
vapor density  7.9 (vs air)
storage temp.  2-8°C
solubility  H2O: 0.01 M at 20 °C, clear, colorless
form  Powder/Solid
color  White to off-white
Specific Gravity 3.618
PH pH (5g/l, 25℃) : 4.5~5.5
Odor Odorless
PH Range 4.5 - 5.5
Water Solubility  0.42 g/100 mL (20 ºC)
Merck  14,7654
crystal system square
Space group I41/a
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.57260.57261.2607909090

Stability: Stable. Strong oxidizer - contact with combustible materials may cause fire. Incompatible with organic material, combustible material, strong reducing agents, powdered metals.

Description and Uses

For the colorimetric determination of Mn (oxidizes manganese compounds to permanganates), as oxidizing agentPotassium periodate is used as an oxidizing agent in organic synthesis and an analytical reagent for the determination of potassium and cerium. It is also used in colorimetric estimation of manganese. It reacts with ammonium cerium(IV) nitrate to prepare tris[trinitratocerium(IV)] paraperiodate which finds application as an oxidant.

Safety

Symbol(GHS) 
GHS03,GHS05,GHS08,GHS09
Signal word  Danger
Hazard statements  H271-H314-H372-H400
Precautionary statements  P210-P260-P273-P280-P303+P361+P353-P305+P351+P338
Hazard Codes  O,Xi
Risk Statements  8-36/37/38
Safety Statements  17-26-36-37/39
RIDADR  UN 1479 5.1/PG 2
WGK Germany  3
3
TSCA  Yes
HazardClass  5.1
PackingGroup  II
HS Code  28299000

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