copperdibromide
Copper(II) bromide, anhydrous
CAS: 7789-45-9
Molecular Formula: Br2Cu
copperdibromide - Names and Identifiers
| Name | Copper(II) bromide, anhydrous |
| Synonyms | Cupric bromide CUPRIC BROMIDE COPPER BROMIDE copperdibromide Copperic bromide Copper(Ⅱ) bromide COPPER(+2)BROMIDE COPPER(II) BROMIDE Copper(II) bromide copper(2+) dibromide copperbromide(cubr2) Copper(II) bromide, anhydrous |
| CAS | 7789-45-9 |
| EINECS | 232-167-2 |
| InChI | InChI=1/2BrH.Cu/h2*1H;/q;;+2/p-2/rBr2Cu/c1-3-2 |
copperdibromide - Physico-chemical Properties
| Molecular Formula | Br2Cu |
| Molar Mass | 223.35 |
| Density | 4.77g/mLat 25°C(lit.) |
| Melting Point | 498°C(lit.) |
| Boling Point | 900 °C |
| Flash Point | 900°C |
| Water Solubility | soluble |
| Solubility | 1200g/l |
| Appearance | Black crystal |
| Specific Gravity | 4.77 |
| Color | Gray-blue |
| Exposure Limit | ACGIH: TWA 1 mg/m3NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3 |
| Merck | 14,2629 |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with alkali metals, moisture. Reacts violently with potassium. |
| Sensitive | Hygroscopic |
| MDL | MFCD00010970 |
| Physical and Chemical Properties | Density 4.77 melting point 498°C boiling point 900°C water-soluble solution |
| Use | Used as analytical reagents, catalysts |
copperdibromide - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R34 - Causes burns R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3260 8/PG 3 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 2827 59 00 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 536 mg/kg |
copperdibromide - Introduction
Easy deliquescence, soluble in water, soluble in alcohol acetone and ammonia, almost insoluble in ether, benzene and concentrated sulfuric acid.
Last Update：2022-10-16 17:28:50
copperdibromide - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | copper bromide can be used as brominating reagent, oxidizing reagent and Lewis acid reagent. |
| mechanism of action | copper bromide is an effective brominating agent that can act on a variety of functional compounds. Such as to achieve the bromination reaction of carbonyl ortho-methylene. When other methylene groups, such as steroids, are present in the substrate, the copper bromide can recognize the position of the carbonyl group, thereby selectively effecting the bromination reaction at the ortho position of the carbonyl group. |
| Use | copper bromide can be used as a photographic sensitizer; As a brominating agent in organic synthesis; It can also be used in copper vapor lasers, when the hydrogen bromide placed in the catheter reacts with the molten copper under discharge conditions to form copper bromide vapor, this laser can produce yellow or green light, which is applied in dermatology. used as brominating agent in organic synthesis used as analytical reagent and catalyst analytical reagent. Brominating agents for organic synthesis. Stabilizer for acetylated polyoxymethylene. Humidity indicator temperature indicator, organic synthetic brominating agent, acetylated polyoxymethylene stabilizer. |
| solubility in water (g/100ml) | grams dissolved per 100ml of water at different temperatures (℃): 107g/0 ℃;116g/10 ℃;126g/20 ℃;128g/30 ℃;131g/40 ℃ |
| risk | copper bromide is toxic and cannot be consumed. It will affect the human central nervous system, brain, eyes, liver and kidney cause adverse effects, while stimulating the human skin, eyes and respiratory tract. |
| production method | 1. The copper oxide metered according to the reaction scheme is dissolved in hot (to avoid boiling) hydrobromic acid, filtered through a glass filter, and the filtrate is immediately concentrated in a vacuum on sulfuric acid to solidify the target product. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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