Calcium bromide
- Iupac Name：calcium;dibromide
- CAS No.: 7789-41-5
- Molecular Weight：199.886
- Modify Date.: 2022-11-25 02:14
- Introduction: Calcium bromide (CaBr2) is used as a developer for photographic film and paper and as adehydrating agent (drying agent), food preservative, and fire retardant.
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1. Names and Identifiers
- 1.1 Name
- Calcium bromide
- 1.2 Synonyms
CaBr2 Calcium bromide solution CALCIUM (II) BROMIDE Calcium bromide (CaBr2) Calcium dibromide calciumbromide(cabr2) calciumbromideanhydrous
- 1.3 CAS No.
- 7789-41-5
- 1.4 CID
- 5360316
- 1.5 EINECS(EC#)
- 232-164-6
- 1.6 Molecular Formula
- Br2Ca (isomer)
- 1.7 Inchi
- InChI=1S/2BrH.Ca/h2*1H;/q;;+2/p-2
- 1.8 InChkey
- WGEFECGEFUFIQW-UHFFFAOYSA-L
- 1.9 Canonical Smiles
- [Ca+2].[Br-].[Br-]
- 1.10 Isomers Smiles
- [Ca+2].[Br-].[Br-]
2. Properties
- 2.1 Density
- 3.353
- 2.1 Melting point
- 730 °C
- 2.1 Boiling point
- 806℃
- 2.1 Flash Point
- 806-812°C
- 2.1 Precise Quality
- 197.79900
- 2.1 PSA
- 0.00000
- 2.1 logP
- -5.99200
- 2.1 Appearance
- WHITE HYGROSCOPIC POWDER.
- 2.2 Storage
- Hygroscopic. Ambient temperatures.
- 2.3 Color/Form
- White to off-white
- 2.4 Decomposition
- When heated to decomposition it emits toxic fumes of /hydrogen bromides/.
- 2.5 Odor
- Odorless
- 2.6 PH
- The aqueous solution is neutral or only slightly alkaline to litmus.
- 2.7 Water Solubility
- Solubility in water, g/100ml at 30°C: 142
- 2.8 Stability
- hygroscopic
- 2.9 StorageTemp
- Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.
3. Use and Manufacturing
- 3.1 Usage
- Calcium bromide (CaBr2) is used as a developer for photographic film and paper and as adehydrating agent (drying agent), food preservative, and fire retardant.
4. Safety and Handling
- 4.1 Hazard Codes
- Xi
- 4.1 Risk Statements
- R38
- 4.1 Safety Statements
- S22;S24/25
- 4.1 Hazard Declaration
- H318
- 4.1 RIDADR
- NONH for all modes of transport
- 4.1 Caution Statement
- P280-P305 + P351 + P338
- 4.1 WGK Germany
- 2
- 4.1 RTECS
- EV9328000
- 4.1 Safety
-
Hazard Codes:? 
Xi
Risk Statements: 38
38:?Irritating to the skin ?
Safety Statements:?22-24/25
22:?Do not breathe dust??
24/25:?Avoid contact with skin and eyes
WGK Germany: 2
RTECS: EV9328000
- 4.2 Sensitive
- Hygroscopic
- 4.3 Specification
-
When strongly heated in air, Calcium bromide will produce calcium oxide and bromine.
2 CaBr2 + O2 → 2 CaO + 2 Br2
- 4.4 Toxicity
-
| Organism |
Test Type |
Route |
Reported Dose (Normalized Dose) |
Effect |
Source |
| mouse |
LD50 |
intraperitoneal |
740mg/kg (740mg/kg) |
BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)
BEHAVIORAL: ATAXIA
LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION |
Oyo Yakuri. Pharmacometrics. Vol. 16, Pg. 229, 1978. |
| mouse |
LD50 |
subcutaneous |
1580mg/kg (1580mg/kg) |
? |
Oyo Yakuri. Pharmacometrics. Vol. 20, Pg. 693, 1980. |
| rat |
LD50 |
intraperitoneal |
437mg/kg (437mg/kg) |
SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE
BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)
BEHAVIORAL: ATAXIA |
Oyo Yakuri. Pharmacometrics. Vol. 16, Pg. 229, 1978. |
| rat |
LD50 |
oral |
4100mg/kg (4100mg/kg) |
BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION
SKIN AND APPENDAGES (SKIN): HAIR: OTHER |
National Technical Information Service. Vol. OTS0539228, |
5. MSDS
2.Hazard identification
2.1 Classification of the substance or mixture
Serious eye damage, Category 1
2.2 GHS label elements, including precautionary statements
| Pictogram(s) |  |
| Signal word | Danger |
| Hazard statement(s) | H318 Causes serious eye damage |
| Precautionary statement(s) | |
| Prevention | P280 Wear protective gloves/protective clothing/eye protection/face protection. |
| Response | P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310 Immediately call a POISON CENTER/doctor/\u2026 |
| Storage | none |
| Disposal | none |
2.3 Other hazards which do not result in classification
none
6. Synthesis Route
7789-41-5Total: 1 Synthesis Route
-
|
|
 |
|
Literatures:
Angewandte Chemie, , vol. 41, p. 721 - 721
Chem. News J. Ind. Sci., , vol. 119, p. 260
Journal of the American Chemical Society, , vol. 17, p. 309
Br: MVol., 3.4, page 124 - 130
Yield: null
|
7. Other Information
- 7.0 Usage
- Calcium bromide is a dehydrating agent used in photography, food preservatives, wood preservatives, fire retardants and freezing mixtures. It is used as an oxidizer for mercury emissions control. It is widely used for the preparation of drilling fluids, completion fluids and drilling muds formulations. It also finds application in the manufacture of mineral water.
- 7.1 Usage
- CaBr2 is mainly used as a dense aqueous solution for drilling fluid. It is also used in neuroses medication, freezing mixtures, food preservatives, photography and fire retardants.
- 7.2 Storage features
- Dry. Separated from strong oxidants.
8. Computational chemical data
- Molecular Weight: 199.886g/mol
- Molecular Formula: Br2Ca
- Compound Is Canonicalized: True
- XLogP3-AA: null
- Exact Mass: 199.79722
- Monoisotopic Mass: 197.79927
- Complexity: 0
- Rotatable Bond Count: 0
- Hydrogen Bond Donor Count: 0
- Hydrogen Bond Acceptor Count: 2
- Topological Polar Surface Area: 0
- Heavy Atom Count: 3
- Defined Atom Stereocenter Count: 0
- Undefined Atom Stereocenter Count: 0
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Isotope Atom Count: 0
- Covalently-Bonded Unit Count: 3
- CACTVS Substructure Key Fingerprint: AAADcQAAAAAAGAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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