CUPROUS IODIDE

PRODUCT IDENTIFICATION

CAS NO.

7681-65-4

CUPROUS IODIDE 

EINECS NO. 231-674-6
FORMULA

CuI

MOL WT.

190.45

HS CODE

2827.60.1000
TOXICITY  
SYNONYMS Copper(I) Iodide; Kupferiodid; Ioduro de cobre; Iodure de cuivre;
Copper monoiodide; Cuprous iodide; Hydro-Giene; Other RN: 12527-63-8, 265669-02-1, 40452-11-7
SMILES [Cu]I

CLASSIFICATION

Bactericide, Catalyst

EXTRA NOTES

EPA Pesticide Chemical Code 108301
Optimal catalyst for stereospecific and regioselective reaction of silacyclopropanes with carbonyl compounds 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white to gray-beige powder
MELTING POINT 605 C
BOILING POINT 1290 C
SPECIFIC GRAVITY 5.62
SOLUBILITY IN WATER Insoluble
SOLVENT SOLUBILITY Soluble in ammonia and potassium iodide
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

Health: 2; Flammability: 0; Reactivity: 1

REFRACTIVE INDEX

 

FLASH POINT

 

STABILITY

Stable under ordinary conditions. Light sensitive.

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

Material Safety Data Sheet

Google Scholar Search

Drug Information Portal (U.S. National Library of Medicine) - CUPROUS IODIDE

http://me.lixinweb.com/
The control of the morphology of micro/nanoscaled crystals is essential for the application of functional materials in various micro/nanodevices. In particular, crystals, which can carry charge and excitons efficiently, are being paid more and more attention due to their unique properties as the ideal building blocks for micro/nanoscaled electronics and optoelectronics. Cuprous iodide (CuI), as a hole transporting material, has attracted steadily growing interest because of its ultrafast scintillation property with a decay time of about 90 ps at room temperature. It has been demonstrated that electro-optic micro/nanodevices made of cuprous iodide are affected by the morphology of the CuI crystal. Electrochemical processes and chemical or chemisorbed methods are used to prepare CuI crystals. So far, various methods have been developed for the morphology control of semiconductor micro/nano crystals, but few studies have examined the morphology of the CuI crystal systematically, and establishing a simple and efficient route to prepare micro/nanoscaled CuI crystals with well-controlled morphology and size is urgently important.

http://www.sulphuric-acid.com/
Toho Process:
This process is based on the addition of potassium iodide and precipitating mercury as mercuric iodide.  The chemistry very complex as shown in the following reactions:
                           Hg2+ +  2 I-   -->  HgI2
                           2 KI  +  2 H2SO4   -->  I2  +  2 KHSO4   +  SO2  +  2 H2O
                            I2  +   I  --> I3-
                            Hg2+   +  2 I3-   -->  HgI2   +  2 I2
The addition of cuprous iodide in addition to potassium iodide will form a more stable precipitate Cu2HgI4.
  The precipitated mercury is separated by filtration.  Air is used to strip sulphur dioxide and iodine from the acid.
Under the right conditions, the mercury levels can be reduced from 60 ppm to less than 1 ppm.
  The reaction is favoured by high acid concentration and low temperature.  Good performance is obtained with 93% H2SO4 at 0°C but poor performance is obtained at 98% H2SO4 at 75°C.

Local:
Applications: Heat and Light Stabilisers for Nylon, Fine Chemical Synthesis.
Coupling Chemistry  Preparation of unsymmetrical biaryls. ice-nucleating, coating in cathode-ray tubes

SALES SPECIFICATION

APPEARANCE

off white powder

ASSAY ( CuI )

98.0% min

Cu CONTENT

32.5% min

MOISTURE

0.5% max

SULPHATE

0.1% max

IRON

50ppm max

TRANSPORTATION
PACKING
 
HAZARD CLASS 9 (Packing Group:III)
UN NO. 3077
SAFETY INFORMATION

GHS

 

SIGNAL WORD Warning

PICTOGRAMS

HAZARD STATEMENTS

H302:  Harmful if swallowed
H335:  May cause respiratory irritation
H410:  Very toxic to aquatic life with long lasting effects
H319:  Causes serious eye irritation
H315:  Causes skin irritation

PRECAUTIONARY STATEMENTS

P261:  Avoid breathing dust/fume/gas/mist/vapors/spray
P273:  Avoid release to the environment
P301+ P312:  IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
P302+ P352:  IF ON SKIN: Wash with plenty of soap and water
P280:  Wear protective gloves/protective clothing/eye protection/face protection
P305 + P351 + P338:  IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing

EC DIRECTIVES

 

HAZARD CODES

Xn HarmfulN Dangerous for the environment

RISK PHRASES

22:  Harmful if swallowed.
36/37/38:  Irritating to eyes, respiratory system and skin.
50/53:  Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.

SAFETY PHRASES

26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
29:  Do not empty into drains.
37/39:  Wear suitable gloves and eye/face protection.
57:  Use appropriate container to avoid environmental contamination.

PRICE INFORMATION