Potassium periodate , AR,99.8% , 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

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/nm: 0.5726
  • b/nm: 0.5726
  • c/nm: 1.2607
  • α/o: 90
  • β/o: 90
  • γ/o: 90
• Stability: Stable. Strong oxidizer - contact with combustible materials may cause fire. Incompatible with organic material, combustible material, strong reducing agents, powdered metals.
• CAS DataBase Reference: 7790-21-8(CAS DataBase Reference)
• EPA Substance Registry System: Periodic acid (HIO4), potassium salt (7790-21-8)

Description and Uses

Powerful oxidizer in acid solution, oxidizing manganese Compounds to permanganate; used for this purpose in analytical chemistry (colorimetric estimation of Mn), also for the oxidation of some organic Compounds.

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
• F: 3
• TSCA: Yes
• HazardClass: 5.1
• PackingGroup: II
• HS Code: 28299000