Triisobutylaluminium
- CAS No.
- 100-99-2
- Chemical Name:
- Triisobutylaluminium
- Synonyms
- TRIISOBUTYLALUMINUM;tibal;TriisobutyL;tiba solution;triisobutylalane;triisobutyl-alane;tris(isobutyl)alane;TRI-I-BUTYLALUMINUM;triisobutyl-aluminu;TriisobutylAmmonium
- CBNumber:
- CB5356155
- Molecular Formula:
- C12H27Al
- Molecular Weight:
- 198.32
- MOL File:
- 100-99-2.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/4/23 13:52:06
| Melting point | 4-6°C |
|---|---|
| Boiling point | 68-69 °C |
| Density | 0.848 g/mL at 25 °C |
| vapor pressure | 75Pa at 25℃ |
| refractive index | 1.4494 |
| Flash point | −1 °F |
| storage temp. | 0-6°C |
| form | Solution |
| Specific Gravity | 0.848 |
| color | Clear colorless to light yellow |
| Water Solubility | reacts |
| Sensitive | Air & Moisture Sensitive |
| Hydrolytic Sensitivity | 10: reacts extremely rapidly with moisture and oxygen - may be pyrophoric - sealed system required |
| Merck | 14,326 |
| BRN | 3587328 |
| Exposure limits |
ACGIH: TWA 50 ppm (Skin) OSHA: TWA 500 ppm(1800 mg/m3) NIOSH: IDLH 1100 ppm; TWA 50 ppm(180 mg/m3) |
| InChIKey | MCULRUJILOGHCJ-UHFFFAOYSA-N |
| CAS DataBase Reference | 100-99-2(CAS DataBase Reference) |
| EPA Substance Registry System | Triisobutyl aluminum (100-99-2) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |     GHS02,GHS05,GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H250-H260-H304-H314-H336-H361d-H373-H412 | |||||||||
| Precautionary statements | P210-P231+P232-P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338-P370+P378 | |||||||||
| Hazard Codes | F,C,N | |||||||||
| Risk Statements | 14-17-23/24/25-34-67-65-63-48/20-11-62-51/53 | |||||||||
| Safety Statements | 26-36/37/39-45-61-62-6A-46-43A-16-27-43 | |||||||||
| RIDADR | UN 3394 4.2/PG 1 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | BD2203500 | |||||||||
| F | 10 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 4.3 | |||||||||
| PackingGroup | I | |||||||||
| HS Code | 29319090 | |||||||||
| NFPA 704 |
|
Triisobutylaluminium Chemical Properties,Uses,Production
Chemical Properties
clear colorless to light yellow solution
Uses
Triisobutylaluminium is a useful reagent for preparing anti-corrosive coating materials.
Definition
A mixture of isomers readily prepared by polymerizing isobutylene. A typical mixture is 2,2,4,6,6-pentamethylheptane- 3 and 2-neopentyl-4,4-dimethylpentene-1. May be depolymerized to simpler isobutylene derivatives.
Air & Water Reactions
Pyrophoric. Reacts violently with water producing flammable gas [Rose 1961].
Reactivity Profile
Triisobutylaluminium reacts violently with alcohols, phenols, amines, carbon dioxide, sulfur oxides, nitrogen oxides, halogens, and halogenated hydrocarbons, causing fire and explosion hazards [Handling Chemicals Safely 1980. p. 937].
Health Hazard
Inhalation of smoke from fire causes metal-fume fever (flu-like symptoms). Contact with liquid can cause severe burns of eyes and skin because of spontaneous ignition.
Fire Hazard
It is a highly pyrophoric compound, igniting spontaneously in air. The flash point is measured to be －18°C ( －1°F) (Aldrich 1996). A 1.0 M solution in hexane or toluene is pyrophoric too. It decomposes explosively with water. Reactions with lower alcohols, halogenated hydrocarbons, halogens, and common oxidizing substances can be violent or explosive. Triisobutylaluminum is thermally less stable than triethylaluminum, decomposing above 50°C (122°F), producing isobutene and hydrogen.
Safety Profile
A poison. Extremely destructive to living tissue. A very dangerous fire hazard; ignites on exposure to air. Incompatible with moisture, acids, air, alcohols, amines, halogens. To fight fire, use CO2, dry sand, dry chemical. Do not use water, foam, or halogenated extinguishing agents. When heated to decomposition it emits acrid smoke and irritating fumes.
Potential Exposure
Alkyl aluminum compounds are used as components of olefin polymerization catalysts. They are also used in the synthesis of higher primary alcohols and in pyrophoric fuels, as a catalyst in making ethylene gas; and in plating aluminum.
Shipping
ntial fire or explosion hazard. Shipping: UN3399 Organometallic substance, liquid, water-reactive, flammable, Hazard Class: 4.3; Labels: 4.3 Dangerous Dangerous when wet material, 3-Flammable liquid, technical name Required. UN3051-Spontaneously combustible. Also, this material is dangerous when wet. (Note: this number does not appear in the 49/CFR HazMat tables).
Incompatibilities
The lighter trialkylaluminums ignite spontaneously in air; can self-heat in the air at room temperature without any added energy and may ignite. These compounds are strong reducing agents. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Incompatible with water, oxygen (air), acids, alcohols, phenols, amines, carbon dioxide; sulfur oxides; halogenated compounds, and many other substances
Waste Disposal
Careful incineration
Triisobutylaluminium Preparation Products And Raw materials
Raw materials
Preparation Products
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