Hydroiodic acid , 55.0-58.0%, containing ≤1.5%H3PO2 stabilizer , 10034-85-2

Synonym(s):
Hydriotic acid;Hydrogen iodide solution

CAS NO.：10034-85-2

Empirical Formula: HI

Molecular Weight: 127.91

MDL number: MFCD00011347

EINECS: 233-109-9

PRODUCT Properties

• Melting point: -50.8°
• Boiling point: 127 °C(lit.)
• Density: 1.96 g/mL at 20 °C
• vapor pressure: 721.8kPa at 20℃
• Flash point: 126-127°C
• storage temp.: 2-8°C
• solubility: very soluble in H2O; soluble in organic solvents
• pka: -10(at 25℃)
• form: colorless or yellow gas
• color: Colorless to brown
• Odor: Pungent odor
• PH Range: 1
• PH: 3.01(1 mM solution);2.04(10 mM solution);1.08(100 mM solution)
• Water Solubility: soluble
• Sensitive: Hygroscopic
• Merck: 14,4776
• Exposure limits: ACGIH: TWA 0.01 ppm
• Dielectric constant: 3.4（-50℃）
• Stability: Stable. Incompatible with bases, amines. Corrodes steel. May discolour on exposure to air and light.
• CAS DataBase Reference: 10034-85-2(CAS DataBase Reference)
• NIST Chemistry Reference: Hydrogen iodide(10034-85-2)
• EPA Substance Registry System: Hydriodic acid (10034-85-2)

Description and Uses

‘Iodine’ is derived from iodes, a Greek word meaning violet. It is a member of the halide family and hydrogen iodide is considered a strong acid.

Reducing agent, manufacture of inorganic iodides, pharmaceuticals, disinfectants. The 57% acid is also used for analytical purposes, such as methoxyl determinations.

Safety

• Symbol(GHS): GHS05,GHS09
• Signal word: Danger
• Hazard statements: H290-H314-H411
• Precautionary statements: P234-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
• Hazard Codes: C
• Risk Statements: 34-35
• Safety Statements: 26-36/37/39-45-9
• RIDADR: UN 1787 8/PG 2
• WGK Germany: -
• RTECS: MW3760000
• F: 8
• TSCA: Yes
• HazardClass: 8
• PackingGroup: II
• HS Code: 28111990
• Hazardous Substances Data: 10034-85-2(Hazardous Substances Data)