Pharmaceutical Materials

CAS Number: 100-99-2.

Molecular Formula: C12H27Al.

Molecular Weight: approximately 198.324.

Appearance: Colorless to light yellow liquid.

Application: Mainly used as a catalyst in the synthesis of rubber, resins, and fibers.

Name	Triisobutylaluminum
Synonyms	triisobutylalane triisobutyl-alane Triisobutylaluminum Tri-i-butylaluminum triisobutyl-aluminu Triisobutyl Aluminium Triisobutylaluminum solution tris(2-methylpropyl)aluminum tris(2-methylpropyl)-aluminu Aluminum,tris(2-methylpropyl)- Triisobutylaluminummincolorlessliq aluminum tris(2-methylpropan-1-ide)

Physico-chemical Properties

Molecular Formula	C12H27Al
Molar Mass	198.32
Density	0.848g/mLat 25°C
Melting Point	4-6°C
Boling Point	68-69°C
Flash Point	−1°F
Water Solubility	reacts
Vapor Presure	75Pa at 25℃
Appearance	Solution
Specific Gravity	0.848
Color	Clear colorless to light yellow
Exposure Limit	ACGIH: TWA 50 ppm (Skin)OSHA: TWA 500 ppm(1800 mg/m3)NIOSH: IDLH 1100 ppm; TWA 50 ppm(180 mg/m3)
Merck	14,326
BRN	3587328
Storage Condition	0-6°C
Sensitive	Air & Moisture Sensitive
Refractive Index	1.4494
Physical and Chemical Properties	Colorless transparent liquid.
Use	It is used as a polymerization catalyst for cis-Polybutadiene Rubber, and is also a common polymerization catalyst for other directional polymerization rubbers, synthetic resins and synthetic fibers.

100-99-2 – Risk and Safety

Risk Codes	R14 – Reacts violently with water R17 – Spontaneously flammable in air R23/24/25 – Toxic by inhalation, in contact with skin and if swallowed. R34 – Causes burns R67 – Vapors may cause drowsiness and dizziness R65 – Harmful: May cause lung damage if swallowed R63 – Possible risk of harm to the unborn child R48/20 – R11 – Highly Flammable R62 – Possible risk of impaired fertility R51/53 – Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Description	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.) S61 – Avoid release to the environment. Refer to special instructions / safety data sheets. S62 – If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S6A – S46 – If swallowed, seek medical advice immediately and show this container or label. S43A – S16 – Keep away from sources of ignition. S27 – Take off immediately all contaminated clothing. S43 – In case of fire use … (there follows the type of fire-fighting equipment to be used.)
UN IDs	UN 3394 4.2/PG 1
WGK Germany	2
RTECS	BD2203500
FLUKA BRAND F CODES	10
TSCA	Yes
HS Code	29319090
Hazard Class	4.3
Packing Group	I

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