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| CAS No.: | 7787-70-4 |
|---|---|
| Name: | Copper(I) bromide |
| Article Data: | 169 |
| Cas Database | |
| Molecular Structure: | |
|
|
|
| Formula: | CuBr |
| Molecular Weight: | 143.45 |
| Synonyms: | Cuprous bromide;Copper monobromide;HSDB 270;UNII-R8V209A5G0;Copper bromide (CuBr); |
| EINECS: | 232-131-6 |
| Density: | 4.71 g/mL at 25 °C(lit.) |
| Melting Point: | 492 °C, 765 K, 918 °F |
| Boiling Point: | 1345 °C, 1618 K, 2453 °F |
| Flash Point: | 1345°C |
| Solubility: | slightly soluble in water |
| Appearance: | white powder or crystal |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 22-24/25 |
| Transport Information: | N/A |
| PSA: | 0.00000 |
| LogP: | 0.84310 |
| Conditions | Yield |
|---|---|
| In dichloromethane byproducts: MeBr; room temp. (N2); not isolated, detected spectroscopically; | A 81% B 100% |
| Conditions | Yield |
|---|---|
| With sodium sulfite In water for 0.416667h; | 96% |
| Stage #1: copper(ll) bromide With sodium sulfite In water at 20℃; for 0.25h; Stage #2: With hydrogenchloride; sodium sulfite In water for 0.166667h; | 91% |
| In neat (no solvent) on annealing;; |
| Conditions | Yield |
|---|---|
| In dichloromethane byproducts: n-BuBr; room temp. (N2); not isolated, detected spectroscopically; | A 74% B 92% |
| Conditions | Yield |
|---|---|
| In dichloromethane byproducts: PhCH2Cl; room temp.(N2); not isolated, detected spectroscopically; | A 66% B 89% |
| Conditions | Yield |
|---|---|
| In dichloromethane byproducts: Me3CCh2CH2Br; room temp. (N2); not isolated, detected spectroscopically; | A 87% B 87% |
| Conditions | Yield |
|---|---|
| In dichloromethane byproducts: PhCH2CH2Br; room temp.(N2); not isolated, detected spectroscopically; | A 74% B 85% |
| Conditions | Yield |
|---|---|
| In dichloromethane byproducts: EtBr; room temp.(N2); not isolated, detected spectroscopically; | A 83% B 80% |
| Conditions | Yield |
|---|---|
| In dichloromethane byproducts: s-BuBr; room temp.(N2); not isolated, detected spectroscopically; | A 67% B 83% |
| Conditions | Yield |
|---|---|
| In dichloromethane byproducts: PhCHDCHDBr; room temp.(N2); not isolated, detected spectroscopically; | A 74% B 82% |
copper OO-diethyl thiophosphate
propargyl bromide
A
O,O-Diethyl S-propargyl thiophosphate
B
copper(I) bromide
| Conditions | Yield |
|---|---|
| In toluene addn. of propargyl halide to Cu(I) thiophosphate in toluene, 20°C, heating to 50°C, 2 h; sepg. CuBr ppt., evapn. of solvent, extg. residue with hexane, evapn. of solvent, chromy. (silica, benzene-ether); | A 80% B n/a |
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1. Introduction of Copper(I) bromide
The Copper(I) bromide with CAS registry number of 7787-70-4 is also known as Cuprous bromide. The IUPAC name is Bromocopper. Copper(I) bromide is a white powder or crystal and should be sealed in cool, ventilated, dry place away from heat and fire. What's more, it is slightly soluble in water.
2. Properties of Copper(I) bromide
Physical properties about Copper(I) bromide are: (1)Exact Mass: 141.847939; (2)MonoIsotopic Mass: 141.847939; (3)Heavy Atom Count: 2; (4)Complexity: 2; (5)Covalently-Bonded Unit Count: 1.
3. Structure Descriptors of Copper(I) bromide
1. SMILES: Br[Cu]
2. InChI: InChI=1/BrH.Cu/h1H;/q;+1/p-1
3. InChIKey: NKNDPYCGAZPOFS-REWHXWOFAY
4. Std. InChI: InChI=1S/BrH.Cu/h1H;/q;+1/p-1
5. Std. InChIKey: NKNDPYCGAZPOFS-UHFFFAOYSA-M
4. Safety Information of Copper(I) bromide
Hazard Symbols:Xi
Risk Codes:
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Description:
S22:Do not breathe dust.
S24/25:Avoid contact with skin and eyes.
5. Preparation of Copper(I) bromide
Copper(I) bromide is commonly prepared by reduction of copper(II) bromide with sulfite yields Copper(I) bromide and hydrogen bromide.
2 CuBr2 + H2O + SO32- → 2 CuBr + SO42- + 2 HBr
6. Use of Copper(I) bromide
Copper(I) bromide can be used as analytical reagent, catalyst. Besides, it is employed to convert diazonium salts into the corresponding aryl bromides.
ArN2+ + CuBr → ArBr + N2 + Cu+
7. Other details of Copper(I) bromide
When you are using Copper(I) bromide, please be cautious about it. As a chemical, Copper(I) bromide is irritating to eyes, respiratory system and skin. During using it, do not breathe dust and avoid contact with skin and eyes.
