Hydriodic acid HI CAS 10034-85-2

     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. Hydroiodic acid is aqueous solution of Hydriodic acid.  When fresh, it is colorless, soon precipitates iodine with yellow to brown in air and sunlight.  Azeotrope (56.9% HI), the relative density is 1.70.  Boiling point is 127 ℃.

     Azeotropic solution of hydrogen iodide is often used as reducing agent, disinfectant, analytical reagent, preparation of iodized salt, synthetic drugs, dyes, spices, etc.

Uses :

1. Used for producing organic iodide. As general reagents and Pharmaceutical Intermediates.
2. Used as the analysis reagents, also used in the preparation of the iodide.
3. Used as a reducing agent, also used in the synthesis of alkyl iodine and other alkyl iodide.
4. Used for Determination of methoxy, ethoxy and selenium, dissolution of acid-insoluble inorganic substance, such as an alkaline earth metal sulfate and mercury iodide and so on. Used as a reducing agent. Used for the preparation of iodide.
5. Used for Determination of methoxy, dissolution of acid-insoluble (especially hot) inorganic substance, such as an alkaline earth metal sulfate and mercury iodide and so on. Used as a reducing agent. 

Product Name: Hydriodic acid 
Synonyms: HYDRIODIC ACID(AMPULE);Hydriodic acid 57 wt. % in H2O, distilled, stabilized, 99.95%;Hydriodic acid 57 wt. %, distilled, 99.999% trace metals basis;Hydriodic acid contains <=1.5% hypophosphorous acid as stabilizer, ACS reagent, >=47.0%;Hydriodic acid contains No stabilizer, ACS reagent, 55%;Hydriodic acid contains No stabilizer, distilled, 57 wt. % in H2O, 99.99% trace metals basis;Hydriodic acid puriss. p.a., >=67% (T);Hydroiodic Acid 55% to 57% Solution 
CAS: 10034-85-2 
MF: HI 
MW: 127.91
Melting point  -50.8° 
Boiling point  127 °C(lit.) 
density  1.96 g/mL at 20 °C 
vapor pressure  721.8kPa at 20℃