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Hydriodic acid Structure

Hydriodic acid

Chemical 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)

Safety Information

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
8
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  28111990
Hazardous Substances Data 10034-85-2(Hazardous Substances Data)

MSDS

Usage And Synthesis

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