Kupferiodid

Bezeichnung:Kupferiodid

CAS-Nr7681-65-4

Englisch Name:Cuprous iodide

CBNumberCB4102056

SummenformelCuI

Molgewicht190.45

MOL-Datei7681-65-4.mol

Synonyma

Kupferiodid

Kupferiodid physikalisch-chemischer Eigenschaften

Schmelzpunkt	605 °C (lit.)
Siedepunkt	1290 °C/1 atm (decomp)(lit.)
chüttdichte	1400kg/m3
Dichte	5.62 g/mL at 25 °C (lit.)
Dampfdruck	10 mm Hg ( 656 °C)
Brechungsindex	2.346
Flammpunkt	1290°C
storage temp.	Store below +30°C.
Löslichkeit	dilute aqueous acid: insoluble(lit.)
Aggregatzustand	Powder
Wichte	5.62
Farbe	White to Pale Brown
Wasserlöslichkeit	INSOLUBLE
Sensitive	Air & Moisture Sensitive
Crystal Structure	Cubic, Sphalerite Structure - Space Group F(-4)3m
Merck	14,2662
Solubility Product Constant (Ksp)	pKsp: 11.9
Expositionsgrenzwerte	ACGIH: TWA 1 mg/m3; TWA 0.01 ppm NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3
InChIKey	LSXDOTMGLUJQCM-UHFFFAOYSA-M
CAS Datenbank	7681-65-4(CAS DataBase Reference)
NIST chemische Informationen	Copper(I) iodide(7681-65-4)
EPA chemische Informationen	Cuprous iodide (7681-65-4)

Sicherheit

Kennzeichnung gefährlicher	Xn,N,Xi
R-Sätze:	22-36/37/38-50/53
S-Sätze:	22-24/25-26-61-57-37/39-29
RIDADR	UN 3077 9/PG 3
WGK Germany	3
F	8
TSCA	Yes
HazardClass	9
HS Code	28276000
Giftige Stoffe Daten	7681-65-4(Hazardous Substances Data)

Gefahreninformationscode (GHS)

Cuprous iodide Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Chemische Eigenschaften
Cuprous Iodide, Cu2O, cubic white crystals, practically insoluble in H2O or alcohol, soluble in NH4OH, potassium iodide, or potassium cyanide. Used in Sandmeyer’s reaction to synthesize aryl chlorides.
Chemische Eigenschaften
Cuprous iodide is naturally occurring as the white to reddishbrown mineral marshite. It is essentially insoluble in water but dissolves in complexing media such as ammonia, cyanide, and halide solutions. Copper(I) iodide is manufactured pyrometallurgically by the reaction of hot copper with iodine vapor in a process essentially identical to that for the preparation of copper(I) chloride. It has also been produced by the reaction of copper powder with methanol solutions of iodine at ambient temperatures. Copper(I) iodide is used as a feed additive and as a heat and light stabilizer in certain polymers and photographic emulsions. It is also used in cloud seeding and in the oil-drilling industry as an anticorrosion adjuvant.
Verwenden
Cuprous iodide is used in the preparation of alkynyl imines, which are crucial intermediates for the synthesis of pyrroles and pyrrole heterocycles. It plays a role in the synthesis of BTBT derivatives, specifically benzothieno[3,2-b]benzothiophene, which are semiconductors used in transistors. Beyond its synthetic utility, copper (I) iodide serves as a catalyst for N-arylation of amines and amino acids, facilitating organic reactions. It also has practical applications as an ice-nucleating chemical, a coating in cathode-ray tubes, and as a source of iodine in animal feeds.
Allgemeine Beschreibung
Odorless tan or off-white solid. Sinks in water.

Marshite, CuI, octahedral crystals to 4 mm
Reaktivität anzeigen
Cuprous 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.
Hazard
Toxic.
Health Hazard
Inhalation 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.
Brandgefahr
Special Hazards of Combustion Products: Irritating hydrogen iodide or iodine vapors may form in fire.
reaction suitability
reagent type: catalyst
core: copper
reaction type: click chemistry
läuterung methode
Cuprous iodide 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.]

Cuprous iodide Upstream-Materialien And Downstream Produkte

Kupferiodid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

7681-65-4, Cuprous iodide Verwandte Suche:

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