Basic information
- CAS
7789-68-6- Standard SMILES
[Br][Ti]([Br])([Br])[Br]- InChIKey
UBZYKBZMAMTNKW-UHFFFAOYSA-J- Molecular formula
- Br4Ti
- Average molar mass
- 367.48 g/mol
- Monoisotopic mass
- 363.62129
Names & identifiers
- Preferred name
- Titanium tetrabromide
- IUPAC
- tetrabromotitanium
- English name
- TITANIUM(IV) BROMIDE
- Molecular formula
- Br4Ti
- Molecular weight
- 367.48
Names & synonyms
Show more names
Database identifiers
- CAS
7789-68-6- PubChem CID
- 123263
- DTXSID
DTXSID90894990- EC Number
- 232-185-0
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 19
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 38 · 38-40 °C(lit.)
- Boiling point
- 230 °C · 230 °C(lit.)
- Density
- 3.25 g/mL · 3.25 g/mL at 25 °C(lit.)
- Flash point
- 233 °C · 233°C
- storage temp.
- 2 · 2-8°C, protect from light, stored under nitrogen
- solubility
- 2 O · reacts with H2O
- form
- powder
- color
- Orange
- Specific Gravity
- 2.6 · 2.6
- Water Solubility
- Soluble in absolute alcohol. Decomposes in waterSoluble in chlorocarbons, benzene and alcohol.
- Specific Heat Capacity
- 0.36 J/ · Cp(crystal): 0.36 J/(g·K); Cp(gas): 0.27 J/(g·K), at 25℃
- Sensitive
- Moisture Sensitive
- Hydrolytic Sensitivity
- 8 · 8: reacts rapidly with moisture, water, protic solvents
- Merck
- 14 · 14,9477
- InChI
- 1S/4BrH.Ti/h4*1H;/q;;;;+4/p-4
- InChIKey
- UBZYKBZMAMTNKW-UHFFFAOYSA-J
- SMILES
- Br[Ti](Br)(Br)Br
- CAS DataBase Reference
- 7789 · 7789-68-6
- FDA UNII
- 1 CBW950X1W · 1CBW950X1W
- UNSPSC Code
- 12161600 · 12161600
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 5 · GHS05
- Signal word
- Danger
- Hazard statements
- 314 · H314
- Precautionary statements
- 260 · P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
- PPE
- 3 · Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
- Hazard Codes
- C
- Risk Statements
- 14 · 14-34
- Safety Statements
- 26 · 26-36/37/39-45
- RIDADR
- 3260 · UN 3260 8/PG 2
- WGK Germany
- 3 · 3
- F
- 3 · 3-8-10-21
- TSCA
- No
- HazardClass
- 8 · 8
- PackingGroup
- II
- HS Code
- 28275900 · 28275900
- Storage Class
- 8 A · 8A - Combustible corrosive hazardous materials
- Hazard Classifications
- 1 Skin · Eye Dam. 1Skin Corr. 1B
Safety & regulation
GHS classification
GHS Classification
Danger
H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation];H318 (92.6%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 68 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard information
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)
Toxicity Summary
Bromine is a powerful oxidizing agent and is able to release oxygen free radicals from the water in mucous membranes. These free radicals are also potent oxidizers and produce tissue damage. In additon, the formation of hydrobromic and bromic acids will result in secondary irritation. The bromide ion is also known to affect the central nervous system, causing bromism. This is believed to be a result of bromide ions substituting for chloride ions in the in actions of neurotransmitters and transport systems, thus affecting numerous synaptic processes. (L626, L627, A543)
Signs and Symptoms
Bromine vapour causes irritation and direct damage to the mucous membranes. Symptoms include lacrimation, rhinorrhoea, eye irritation with mucous secretions from the oropharyngeal and upper airways, coughing, dyspnoea, choking, wheezing, epistaxis, and headache. The bromide ion is a central nervous system depressant producing ataxia, slurred speech, tremor, nausea, vomiting, lethargy, dizziness, visual disturbances, unsteadiness, headaches, impaired memory and concentration, disorientation and hallucinations. This is called bromism. (L626, L627)
Regulatory information
Safety data
- F
- 3-8-10-21
- PPE
- Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
- wgk
- 3
- tsca
- No
- ridadr
- UN 3260 8/PG 2
- hs_code
- 28275900
- risk_code
- 14-34
- Signal word
- Danger
- Symbol(GHS)
- GHS05
- hazard_code
- C
- safety_code
- 26-36/37/39-45
- hazard_class
- 8
- Storage Class
- 8A - Combustible corrosive hazardous materials
- packing_group
- II
- Hazard statements
- H314
- Hazard Classifications
- Eye Dam. 1Skin Corr. 1B
- Precautionary statements
- P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
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)
Applications
UsesTitanium(IV) bromide is used as a Lewis acid catalyst in organic synthesis. It reacts with tetrahydrofurnan and 2-methylpyridine and forms adducts such as TiBr4(THF)2 and TiBr4(2-MePy). It is also used for the formation of titanium silicide thin films on silicon substrates.
Preparation methods
PreparationTITANIUM(IV) BROMIDE can be prepared in several ways: (1) Direct bromination: by reacting metallic titanium with bromine; (2) Thermal reduction and bromination of titanium dioxide with carbon: titanium dioxide is mixed thoroughly with powdered carbon (usually carbon black), and bromine vapour is passed through the mixture at a high temperature of 800–1000 °C to facilitate the reaction; (3) Preparation by the reaction of titanium tetrachloride with bromine.
Suppliers34 total
Related reactions
Compound notes
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