7790-21-8

Name Potassium periodate
CAS 7790-21-8
EINECS(EC#) 232-196-0
Molecular Formula IKO4
MDL Number MFCD00011407
Molecular Weight 230
MOL File 7790-21-8.mol
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Chemical Properties

Appearance colourless crystals or white crystalline powder
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
Odor Odorless
PH pH (5g/l, 25℃) : 4.5～5.5
PH Range 4.5 - 5.5
Stability: Stable. Strong oxidizer-contact with combustible materials may cause fire. Incompatible with organic material, combustible material, strong reducing agents, powdered metals.
Water Solubility  0.42 g/100 mL (20 ºC)
crystal system square
Merck  14,7654
Space group I41/a
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.57260.57261.2607909090
InChI 1S/HIO4.K/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1
InChIKey FJVZDOGVDJCCCR-UHFFFAOYSA-M
SMILES [K+].[O-]I(=O)(=O)=O
CAS DataBase Reference 7790-21-8(CAS DataBase Reference)
EPA Substance Registry System 7790-21-8(EPA Substance)
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Safety Data

Hazard Codes  O,Xi
Risk Statements 
R8:Contact with combustible material may cause fire.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S17:Keep away from combustible material .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection .
RIDADR  UN 1479 5.1/PG 2
WGK Germany  3
F  3
TSCA  Yes
HazardClass  5.1
PackingGroup  II
HS Code  28299000
Storage Class 5.1A - Strongly oxidizing hazardous materials
Hazard Classifications Aquatic Acute 1
Eye Dam. 1
Ox. Sol. 1
Skin Corr. 1C
STOT RE 1

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