Product description

Tri-n-hexylaluminum
Molecular formula
Molecular weight
CAS No.
EINECS/ELINCS No
TSCA status

:(n-C₆H₁₃)₃AL
:282.47
:1116-73-0
:214-241-6
:listed on inventory

Composition

Component

Tri-n- hexylaluminum ^a
TriisobutyIaluminum^a
Hydride,as AIH3a
Hexene-1 ^a
(C₁₂H₂₅)₃AL ^a
Other R₃AL^a
Aluminum^b

Specification
(wt%)
94.0 min
2.5 max
0.8max
2.0max
--
(wt%)
22.5min

Typical
(wt%)
96.0
1.1
0.4
1.4
0.7
(wt%)
9.8

characteristics

Appearance
Density,30°C
Melting point
Viscosity,30°C
Boiling point,0.001 mm Hg
Stability to air
Stability to water

Solubility

:clear,colorless to pale amber liquid
:0.821 g/ml
:-77°C
:12.6 mPa .S
:105°C
: may ignites upon exposure
reacts violently,may ignite
upon contact
: soluble In aromatic and
saturated aliphatic and
cycloaliphatic hydrocarbons

Availability

TNHAL is a commercial product available as the neat pyrophoric liquid and as pyrophoric and nonpyrophoric solutions in a variety of hydrocarbon solvents.

Storage

TNHAL and its solutions are stable when stored under a dry,inert
atmosphere and away from heat. TNHAL decomposes slowly above ~100°C
Decomposition products include hydrogen,hexene-1 and
elementaI aluminum.

Packaging and
transport

TNHAL and its solutions are available in cylinders and portable tanks
In North America only. TNHAL is also available in tank trailers and rail cars.
Containers are fabricated from carbon steel and are equipped with dip
tubes for top discharge and all connections are located in the vapor space
Both packaging and transport meet the international regulations

Safety and handling

TNHAL may ignite upon exposure to air and reacts violently with water.
TNHAL and its solutions must be handled under a dry,inert atmosphere.
e.g.nitrogen or argon.Water must be scrupulously removed from process
equipment prior to putting it into metal alkyls service.Products of complete
combustion of TNHAL and its solutions are aIuminum oxide.carbon
dioxide and water.TNHAL causes burns to the skin and eyes.It is
imperative that proper personal protective equipment be worn when
handling TNHAL.
Please refer to the Material Safety Data Sheet(MSDS)for further
information on the safe storage,use and handling of TNHAL.This
information should be thoroughly reviewed prior to acceptance of this
product.

Applications

TNHAL is used as a cocatalyst in the Ziegler-Natta polymerization of olefins