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| CAS No.: | 7699-45-8 |
|---|---|
| Name: | Zinc bromide |
| Article Data: | 58 |
| Molecular Structure: | |
|
|
|
| Formula: | ZnBr2 |
| Molecular Weight: | 225.198 |
| Synonyms: | Zinc bromide (ZnBr2);dibromozinc;Zinc dibromide; |
| EINECS: | 231-718-4 |
| Density: | 4.22 |
| Melting Point: | 394 °C(lit.) |
| Boiling Point: | 697oC |
| Solubility: | soluble, 447 g/100 mL (20℃) |
| Appearance: | white powder |
| Hazard Symbols: |
 C, N
|
| Risk Codes: | 34-50/53-50 |
| Safety: | 26-36/37/39-45-60-61-29 |
| Transport Information: | UN 3260 8/PG 3 |
| PSA: | 0.00000 |
| LogP: | 1.68870 |
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Chemistry
Molecular Structure:
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Molecular Formula: Br2Zn
Molecular Weight: 225.217
IUPAC Name: Dibromozinc
Synonyms of Zinc bromide (CAS NO.7699-45-8): EINECS 231-718-4 ; HSDB 1047 ; UNII-OO7ZBU9703 ; Zinc dibromide ; Zinc bromide (ZnBr2)
CAS NO: 7699-45-8
Classification Code: Mutation data
Melting point: 394 °C
SMILES: Br[Zn]Br
InChI: InChI=1/2BrH.Zn/h2*1H;/q;;+2/p-2
InChIKey: VNDYJBBGRKZCSX-NUQVWONBAG
Std. InChI: InChI=1S/2BrH.Zn/h2*1H;/q;;+2/p-2
Std. InChIKey: VNDYJBBGRKZCSX-UHFFFAOYSA-L
Uses
Zinc bromide (CAS NO.7699-45-8) is used as a transparent shield against radiation. Two glass panes filled with a strong aqueous solution of zinc bromide has a very high density, which can then be used as a window on a hot cell. This type of window has the advantage over lead glass in that it will not darken as a result of exposure to radiation. The advantage of an aqueous salt solution is that any radiation damage will be last less than a millisecond, so the shield will undergo self-repair.
Production
ZnBr2 can be prepared by reacting (double displacement) barium bromide and zinc sulfate to produce the insoluble barium sulfate along with zinc bromide or the reaction of HBr and zinc metal:
BaBr2 + ZnSO4 → BaSO4 + ZnBr2
Zn + HBr → ZnBr2 + H2
Toxicity Data With Reference
RTECS : ZH1150000
Safety Profile
Hazard Codes of Zinc bromide (CAS NO.7699-45-8): 
C,
N
Risk Statements: 34-50/53
R34:Causes burns.
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 26-36/37/39-45-60-61-29
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.)
S60: This material and its container must be disposed of as hazardous waste.
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
S29: Do not empty into drains.
RIDADR: UN 3260 8/PG 3
WGK Germany: 3
RTECS: ZH1150000
F: 3-21
HazardClass: 8
PackingGroup: II