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Home > Products >  Hydriodic acid 10034-85-2 Large in promotion

Hydriodic acid 10034-85-2 Large in promotion CAS NO.10034-85-2

  • Min.Order: 1 Kilogram
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  • Product Details


  • 10034-85-2
  • Hydriodic acid
  • Hydriodic acid, 57% w/w aq. soln., stab with 1.5%

Quick Details

  • ProName: Hydriodic acid 10034-85-2 Large in pro...
  • CasNo: 10034-85-2
  • Molecular Formula: HI
  • Appearance: pale yellow liquid
  • Application: 1. Used for producing organic iodide. ...
  • DeliveryTime: in stock
  • PackAge: drums
  • Port: Shanghai
  • ProductionCapacity: 500 Kilogram/Month
  • Purity: 55-57 wt.%
  • Storage: dry and cool
  • Transportation: air, courier and sea
  • LimitNum: 1 Kilogram


Synonyms: acideiodhydrique(french);acidoyodhidrico;Anhydrous hydriodic acid;anhydroushydriodicacid;caswellno482c;epapesticidechemicalcode046912;Hydri0dic acid;hydridodichlorotris(triphenylphosphine)iridium(iii)hydriodicacid
CAS: 10034-85-2
MW: 127.91
EINECS: 233-109-9
Product Categories: Pesticide intermediates
Mol File: 10034-85-2.mol
Hydriodic acid Structure
Hydriodic acid Chemical Properties
Boiling point  127 °C(lit.)
density  1.96 g/mL at 20 °C
Fp  126-127°C
storage temp.  Refrigerator (+4°C)
pka -10(at 25℃)
Water Solubility  soluble
Sensitive  Hygroscopic
Merck  14,4776
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
F  8
HazardClass  8
PackingGroup  II
Hazardous Substances Data 10034-85-2(Hazardous Substances Data)


Outline hydriodic acid is a strong acid. Chemical Formula is HI. The molecular weight is 127.91. Colorless gas, pale yellow liquid or blob solid. There is a strong pungent odor. Melting point is-50.8 ℃, the boiling point is-35.38 ℃, relative density is 5.660 (gas), 2.85-4.7 (liquid), the refractive index is 1.46616. And form a white acid mist with water vapor in the air, easily soluble in water and emit a lot of heat to generate Hydriodic acid. Slightly soluble in ethanol. Unstable, heated to decompose into hydrogen and iodine under the light. Significantly decomposition above 300 ℃. Its constant boiling solution is colorless or light yellow fuming liquid, boiling point is 127 ℃, relative density is 1.7015, strong acid (degree of dissociation of 0.1 mol·L-1 hydroiodic solution up to 95%), the solubility of Hydriodic acid in an organic solvent is much smaller than in water, present in non-electrolytes or weak electrolytes, its ionization constant in pyridine is 3 × 10-3. Easily break down into hydrogen and iodine in the air. With a strong reduction, It has the strongest reducibility in hydrohalic acids, may be oxidated to free iodine by Cl2, Br2, concentrated sulfuric acid. Oxidation by air at room temperature, can be oxidated by concentrated nitric acid, concentrated sulfuric acid. It reacts with most metals to form the corresponding iodide and hydrogen. Method: by heating reaction of sodium iodide and phosphoric acid or reaction of phosphorus with iodine, water was added dropwise on a mixture of phosphorus and iodine, can also be derived by suspending iodine in water and ventilation with hydrogen sulfide. Its constant boiling solution is derived by ventilating Hydriodic acid gas into the water. Uses: its constant boiling solution is often used as a reducing agent, a disinfectant, analytical reagents, preparation of iodized salt, synthetic drugs, dyes, perfumes and so on. It is synthesized by iodine vapor and hydrogen under platinum catalytic conditions or derived by hydrolysis of phosphorus triiodide.

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