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Cuprous iodide

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Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Products Intro: Product Name:Cuprous iodide
Purity:99% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: CAS:7681-65-4
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Products Intro: Product Name:Cuprous iodide
Company Name: Anhui Royal Chemical Co., Ltd.
Tel: +86-025-86736275
Products Intro: Product Name:Cuprous iodide
Purity:99.00% Package:25kg/drum;200kg/drum
Company Name: career henan chemical co
Tel: +86-371-86658258
Products Intro: Product Name:Cuprous iodide
Purity:99% Package:1kg;1USD

Lastest Price from Cuprous iodide manufacturers

  • Cuprous iodide
  • US $1.00 / kg
  • 2018-12-21
  • CAS:7681-65-4
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: Customized
Cuprous iodide Basic information
Reaction Cuprous halide Physical and Chemical Properties Detecting mercuric test by cuprous iodide Uses Toxicity Using Limited Chemical Properties Production method
Product Name:Cuprous iodide
Synonyms:Copper iodide (CuI);CuI;Hydro-giene;Marshite;COPPER(+1)IODIDE;COPPER IODIDE;COPPER(I) IODIDE;Ciras
Product Categories:Inorganics;metal halide
Mol File:7681-65-4.mol
Cuprous iodide Structure
Cuprous iodide Chemical Properties
Melting point 605 °C(lit.)
Boiling point 1290 °C
density 5.62 g/mL at 25 °C(lit.)
vapor pressure 10 mm Hg ( 656 °C)
refractive index 2.346
Fp 1290°C
storage temp. Store below +30°C.
solubility dilute aqueous acid: insoluble(lit.)
form Powder
color White to Pale Brown
Water Solubility INSOLUBLE
Sensitive Air & Moisture Sensitive
Merck 14,2662
CAS DataBase Reference7681-65-4(CAS DataBase Reference)
NIST Chemistry ReferenceCopper(I) iodide(7681-65-4)
EPA Substance Registry SystemCopper iodide (CuI)(7681-65-4)
Safety Information
Hazard Codes Xn,N,Xi
Risk Statements 22-36/37/38-50/53
Safety Statements 22-24/25-26-61-57-37/39-29
RIDADR UN 3077 9/PG 3
WGK Germany 3
HazardClass 9
HS Code 28276000
Hazardous Substances Data7681-65-4(Hazardous Substances Data)
MSDS Information
Cuprous iodide English
SigmaAldrich English
ACROS English
ALFA English
Cuprous iodide Usage And Synthesis
ReactionCopper catalyst/base admixture useful for screening reactions involving the N-arylation of nitrogen-containing heterocycles.
Cuprous halideCuprous Iodide and cuprous chloride, cuprous bromide are three common cuprous halides, three are white solid, the photonasty of cuprous iodide is worse than CuBr and CuCl, in light decomposition and precipitation of iodine. In nature, it exists in marshite. Cuprous chloride and cuprous bromide can be produced by the reaction of the corresponding acidic solution of divalent copper salt with copper. Cuprous Iodide was prepared by adding Cu2 + into potassium iodide solution.
Cuprous iodide and Magnesium bromide or lithium phenyl in ether can produce copper phenyl.
The reaction of methyl lithium with cuprous iodide at-15 ℃ or by the reaction of copper nitrate and tetramethyl lead in ethanol at-60 ~-40 ℃ can produce methyl copper.
Grignard reagent reacts with cuprous halide to produce cuprous hydrocarbyl, cuprous halide may be cuprous iodide, cuprous bromide, cuprous chloride.
Reaction formula
The above information is edited by the chemicalbook of Yan Yanyong.
Physical and Chemical PropertiesChemical formula is CuI. The molecular weight is 190.45. White cubic crystal or white powder, toxic. The relative density is 5.62, melting point is 605 ℃, boiling point is 1290 ℃. Stable to light and air. Cuprous iodide is almost insoluble in water and ethanol, soluble in liquid ammonia, dilute hydrochloric acid, potassium iodide, potassium cyanide or sodium thiosulfate solution, can be c decomposed by oncentrated sulfuric acid and concentrated nitric acid. The acidic solution of copper sulfate is added excess potassium iodide or under stirring, a mixed solution of potassium iodide and sodium thiosulfate was added dropwise to a solution of copper sulfate, to obtain precipitation of cuprous iodide. In addition to general purpose use as reagents, etc., but also can be used as power-iodide thermal paper conductive layer material, medical sterilization, mechanical bearing temperature agent, but also used for analysis of trace mercury.
Toxicity: Prolonged and repeated contact with the body is harmful, should avoid direct contact with the body. Ingestion is great harm to the body.
Detecting mercuric test by cuprous iodideMercury is widely used in various types of industrial instruments, mirror, chemical and metallurgy. West Lik Sang, Saili scattered, Gu Ren music students and other organic mercury common are used in agriculture as seed disinfectants and insecticides. In pharmaceutical, Mercury preparation and the use of mercury Mercuric chloride, calomel, mercury and other benefits withdrawal are used as disinfection, germicides, mercury also can make treatment medication such as diuretics.
And mercury compounds are toxic, such as eating and careless use can cause poisoning.
[principle] After the sublimation of mercury, then it interacts with copper iodide, generating red complex of mercury iodide. This method can be detected 3μg mercury.
Detecting mercuric iodide reaction equation: 2Cu2I2 + HgHgCu2I4 + 2Cu
[Reagents] Cotton cuprous iodide: 5g of copper sulfate, 3g of anhydrous ferrous sulfate, dissolved in 100mL of water, were added a solution of iodide (7g of potassium iodide was dissolved in 50mL water) with stirring, centrifuged the resulting cuprous iodide to precipitation of cuprous iodide, after washing, it was stirred into a cloudy liquid, absorbent cotton impregnated with this solution is cloudy dry for spare.
[Operation] Copper is set in test tubes by Leiyin Xi's method, iodide cotton gently cover the spout. The bottom of the tube is in the direct fire heating, if the presence of mercury, cotton turns red, at the same time conduct blank control.
Also sample 1 drop of digestive juice, applying to cotton cuprous iodide, if present of mercury, cotton turns red.
Reference: in Wiesen, high Ru Qin, Jin Xiaomei editor, common chemical food poisoning rapid disposal technologies.
Uses1. Cuprous iodide is so widely used as catalyst in organic synthesis, resin modifier, artificial rainfall agents, cathode ray tube cover, as well as sources of iodine in iodized salt. In the presence of 1,2-or 1,3-diamine ligand, cuprous iodide can catalyze reaction of aryl bromide, vinyl bromide and brominated heterocyclic compound converting to the corresponding iodide. The reaction is generally in dioxane solvent, and sodium iodide is used as iodide reagents. Aromatic iodide general is more lively than the corresponding chloride and iodide, therefore, iodide can catalyze a series of reactions involved in coupling a halogenated hydrocarbon, for example, Heck reaction, Stille reaction, Suzuki reaction and the Ullmann reaction. In the present of dichloro bis (triphenylphosphine) palladium (II), cuprous chloride and diethylamine, 2-bromo-1-octen-3-ol with 1-Nonyl acetylene coupling reaction to produce 7-sub-8-hexadecene-6-ol.
2. used as a catalyst for organic reactions, cathode ray tube covering, also used as animal feed additives, etc. copper iodide and mercuric iodide may also be used together as the indicator of measuring rising temperature of mechanical bearing.
3. as a catalyst in many reactions involved in the Grignard reagent, the cuprous iodide can also be in dry Wiff rearrangement reaction.
Using LimitedO.01%(FDA§184.1265,2000).
Chemical PropertiesPure white crystalline powder. Dissolved in water.
Production methodDerived by the reaction of copper sulfate and potassium iodide under weakly acidic conditions.
Chemical PropertiesWhite to grey or tan powder
UsesCopper (I) Iodide used in the preparation of alkynyl imines and the synthesis of pyrroles and pyrrole heterocycles. It is also used in the synthesis of BTBT derivatives ([1]Benzothieno[3,2-b]benzothio phene) for use as semiconductors in transistors.
UsesA catalyst for N-arylation of amines and amino acids
UsesAs catalyst in organic reactions; as ice-nucleating chemical; as coating in cathode-ray tubes; as source of iodine in animal feeds; with HgI2 as tempereture indicator; bactericide.
General DescriptionOdorless tan or off-white solid. Sinks in water.
Reactivity ProfileCuprous iodide has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive.
Health HazardInhalation causes irritation of nose and throat. Ingestion of copper salts produces violent vomiting and purging, intense pain, collapse, coma, convulsions, and paralysis. Contact with eyes or skin causes irritation.
Fire HazardSpecial Hazards of Combustion Products: Irritating hydrogen iodide or iodine vapors may form in fire.
Purification MethodsIt can be freshly prepared by dissolving an appropriate quantity of CuI in boiling saturated aqueous NaI over 30minutes. Pure CuI is obtained by cooling and diluting the solution with water, followed by filtering and washing sequentially with H2O, EtOH, EtOAc, Et2O and pentane, then drying in vacuo for 24hours [Dieter, J Am Chem Soc 107 4679 1985]. Alternatively wash it with H2O, then EtOH and finally with Et2O containing a little iodine. Traces of H2O are best removed first by heating at 110o and then at 400o. Exess of I2 is removed completely at 400o. It dissolves in Et2O if an amine is present to form the amine complex. On heating it becomes red, then black, but changes to white on cooling. It is sparingly soluble in H2O or alkali iodide solutions but readily soluble in NH3 (which absorbs CO) and in cyanide or thiosulfate solutions. [Glemser & Sauer in Handbook of Preparative Inorganic Chemistry (Ed Brauer) Academic Press Vol II p 1007 1965, Bawn & Ledwith Chem Ind (London) 1180 1957.]
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