Strontium bromide
Basic information
- CAS
10476-81-0- Standard SMILES
[Br-].[Br-].[Sr+2]- InChIKey
YJPVTCSBVRMESK-UHFFFAOYSA-L- Molecular formula
- Br2Sr
- Average molar mass
- 247.43 g/mol
- Monoisotopic mass
- 245.74229
Overview
Strontium bromide is a chemical compound of strontium and bromine. It is used in flares and also has some pharmaceutical uses. Bromine is a halogen element with the symbol Br and atomic number 35. Diatomic bromine does not occur naturally, but bromine salts can be found in crustal rock. (L625, L666)
Names & identifiers
- Preferred name
- Strontium bromide
- IUPAC
- strontium dibromide
- English name
- Strontium bromide
- Molecular formula
- Br2Sr
- Molecular weight
- 247.43
Names & synonyms
EINECS 233-969-5UNII-1NG558X5VJ1NG558X5VJRefChem:56054DTXCID001326928233-969-5DTXSID30897581Strontium BromatumStrontium bromideSTRONTIUM BROMIDE, ANHYDROUSStrontium bromide (SrBr2)strontium;dibromide
Show more names
Strontium dibromideSTRONTIUM (II) BROMIDEstrontiumbromide(srbr2)STRONTIUMBROMIDE,PURIFIEDStrontium bromide, GR 99%+
SrBr2Strontium bromide anhydrous powderstrontium(II) bromideStrontiumbromidStrontium bromide, ultra drySCHEMBL15366617D95735
Database identifiers
- CAS
10476-81-0- PubChem CID
- 25302
- EC Number
- 233-969-5
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 0
- Heavy atoms
- 3
- Formal charge
- 0
- Complexity
- 2.8
Experimental & physicochemical properties
Chemical ClassesMetals -> Metals, Inorganic Compounds
Physical DescriptionHexahydrate: Colorless deliquescent crystals or white solid; [Merck Index] White powder; [Sigma-Aldrich MSDS]
Physicochemical properties
- Melting point
- 643 °C · 643°C
- Density
- 4 · 4,216 g/cm3
- form
- powder
- color
- White
- Specific Gravity
- 4.216 · 4.216
- Water Solubility
- Soluble in water, carbinol, ethanol, amyl alcohol. Insoluble in ether.
- Specific Heat Capacity
- 0.3 J/ · Cp(crystal): 0.3 J/(g·K), at 25℃
- Sensitive
- Hygroscopic
- Merck
- 14 · 14,8837
- Stability
- hygroscopic
- Major Application
- electroplatingmaterial synthesis precursor
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Warning
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 45 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Hazards SummaryIntraperitoneal LD50 (rat) = 1,000 mg/kg; [RTECS] A skin and strong eye irritant; Heavy exposure may cause CNS depression; [Sigma-Aldrich MSDS] See Calcium bromide and Magnesium bromide.
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Toxicology
Treatment
EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.
Health Effects
Bromine vapour causes irritation and direct damage to the mucous membranes. Elemental bromine also burns the skin. The bromide ion is a central nervous system depressant and chronic exposure produces neuronal effects. This is called bromism and can result in central reactions reaching from somnolence to coma, cachexia, exicosis, loss of reflexes or pathologic reflexes, clonic seizures, tremor, ataxia, loss of neural sensitivity, paresis, papillar edema of the eyes, abnormal speech, cerebral edema, delirium, aggressiveness, and psychoses. (L625, L626, L627)
Chemistry & industry
Pharmacology
Metabolism/Metabolites
Bromine is mainly absorbed via inhalation, but may also enter the body through dermal contact. Bromine salts can be ingested. Due to its reactivity, bromine quickly forms bromide and may be deposited in the tissues, displacing other halogens. (L626)
Uses & manufacturing
UsesHas been used as an anticonvulsant and sedative; [Merck Index]
Applications
DescriptionStrontium bromide has the formula SrBr2. At room temperature, it is a white, odorless, crystalline powder with the molecular weight of 247.43 g/mol. Strontium bromide burns bright red in a flame test. It is used in flares and also has some pharmaceutical uses. Several hydrates have been characterized including the monohydrate and the hexahydrate, SrBr2·6H2O. This salt is a white, hygroscopic powder soluble in water and alcohol. It loses water at 180°C, melts at 643°C and is used in medicine and as an analytical reagent. The anhydrate, SrBr2, is a colorless, transparent, crystal, odorless, having a bitter, saline taste. It is very deliquescent and soluble in water and is readily soluble in alcohol and amyl alcohol. The specific gravity of SrBr2 is 4.210 g/cm3. It can be prepared by treating SrCO3 with a hydrogen bromide solution. Alternatively, a strontium salt (carbonate, sulfate, chloride, etc.) is treated with bromine or hydrobromic acid in presence of a reducing agent.
UsesReagent for facile synthesis of poly(phenylcarbyne), a precursor to diamond-like carbon.1
UsesAlso has some pharmaceutical uses
UsesStrontium bromide are colorless crystals made by neutralizing hydrobromic acid with strontium hydrate. The crystals are soluble in water but less so in alcohol. Strontium bromide was occasionally used to increase contrast in collodion emulsions.
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