Product Data Sheet

TMAl Solar
Trimethylaluminum

TMAL Solar is a special trimethylaluminum grade used
to create an aluminum oxide passivation layer toincrease efficiency of crystalline silica solar cells withproven performance in Chemical Vapour Deposition(CVD) and Atomic Layer Deposition (ALD) used in thesolar cell industry.

CAS number
75-24-1

EINECS/ELINCS No.
200-853-0

TSCA statuslisted on inventory

Molecular weight
72.1

Characteristics
Appearance

Clear, colorless liquid

Boiling point, 760 torr

127 °C

Density, 30 °C

0.743 g/cm³

Melting point

15 °C

SolubilitySoluble in aromatic and saturated aliphatic andcycloaliphatic hydrocarbons

Stability to air

Ignites upon exposure

Stability to water

Reacts violently, may ignite upon contact

Viscosity, 30 °C

0.9 mPa.s

Vapor Pressure
at 10 °C / 283.15 K

4.87 torr

at 15 °C / 288.15 K

6.57 torr

A2134

B

8.224

Gas constants

log P(torr) = B-A/T(K)

Thermochemical properties
Heat of vaporization ΔHv, 127 °C / 1 bar

247 J/g (59 cal/g)

Specific heat, 57 °C

2.213 J/g.°C (0.529 cal/g.°C)

Heat of formation ΔHf°, 25 °C / 1 bar-151 kJ/mole (-36 kcal/mole)Heat of combustion ΔHc°, 25 °C-3180 kJ/mole (-760 kcal/mole)Applications
For the solar cell manufacturing industry we offer a special trimethylaluminum grade under the trade name of TMAL Solar.
TMAL Solar is used to create an aluminum oxide passivation layer to increase efficiency of solar cells. TMAL Solar has
proven performance in Chemical Vapour Deposition (CVD) and Atomic Layer Deposition (ALD) used in the solar cellindustry. It offers a cost-effective alternative to the ultra pure trimethylaluminum used in the semiconductor industry. Not
to forget its superior performance over industrial grade TMAL used in the plastics industry. The extra purification step toproduce TMAL Solar guarantees consistent, high quality material for your solar cell application. Our trimethylaluminum issupplied in canisters (cylinders) made from stainless steel with an electropolished internal finish. The cylinders areequipped with manual or pneumatic diaphragm valves. The valves are equipped with metal gasket VCR-connections.

StorageTMAl Solar is stable when stored under a dry, inert atmosphere and away from heat.

Packaging and transport
We maintain a fleet of cylinders and portable tanks designed for the shipment of TMAl Solar. Shipping containers aredesigned and constructed to meet all national and international transport regulations and are tested periodically, inaccordance with the appropriate regulations. Our standard containers are fabricated from carbon steel and are equippedwith dip tubes for top discharge. Valves are equipped with standard VCR connections. Other containers are available onrequest. TMAl Solar is classified as Organometallic substance, liquid, pyrophoric, water-reactive; Class 4. 2; UN 3394; PG I.

Additional information
Nouryon uses leading edge processes, purification and transfilling techniques that ensure the repeatable and consistentdelivery of our TMAl Solar in each cylinder that we supply. We apply state of the art techniques such as ICP-OES for trace
metal analysis to meet your demands. Please contact us for detailed sales specifications.

All information concerning this product and/or suggestions for handling and use contained herein are offered in good faith and are believed to be reliable.
Nouryon, however, makes no warranty as to accuracy and/or sufficiency of such information and/or suggestions, as to the product's merchantability orfitness for any particular purpose, or that any suggested use will not infringe any patent. Nouryon does not accept any liability whatsoever arising out of theuse of or reliance on this information, or out of the use or the performance of the product. Nothing contained herein shall be construed as granting orextending any license under any patent. Customer must determine for himself, by preliminary tests or otherwise, the suitability of this product for hispurposes. The information contained herein supersedes all previously issued information on the subject matter covered. The customer may forward,
distribute, and/or photocopy this document only if unaltered and complete, including all of its headers and footers, and should refrain from any
unauthorized use. Don’t copy this document to a website.

Swagelok and VCR are registered trademarks of Swagelok Company.

Contact Us
HPMO Americas
metalorganicsNA@nouryon.com
HPMO Europe, Middle East, India and Africa
metalorganicsEU@nouryon.com
HPMO Asia PacificmetalorganicsAP@nouryon.com

2021-9-20© 2021

TMAl SolarElectronics