Toxic by inhalation and if swallowed. Danger of cumulative
effects. Very toxic to aquatic organisms, may cause long-term
adverse effects in the aquatic environment.

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3 - Composition/Information on Ingredients

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Product NameCAS #EC noAnnex I
Index Number
(PHENYLSELENOMETHYL)TRIMETHYLSILAN 56253-60-2 260-077-3 034-002-00-8
E
FormulaC10H16SeSi
Molecular Weight 243,2900 AMU

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4 - First Aid Measures

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AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
AFTER SKIN CONTACT
In case of contact, immediately wash skin with soap and copious
amounts of water.
AFTER EYE CONTACT
In case of contact, immediately flush eyes with copious amounts
of water for at least 15 minutes.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.

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5 - Fire Fighting Measures
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EXTINGUISHING MEDIA
Suitable: Water spray. Carbon dioxide, dry chemical powder, or
appropriate foam.
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.

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6 - Accidental Release Measures

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PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear respirator, chemical safety goggles, rubber boots, and
heavy rubber gloves.
METHODS FOR CLEANING UP
Cover with dry lime or soda ash, pick up, keep in a closed
container, and hold for waste disposal. Ventilate area and wash
spill site after material pickup is complete.

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7 - Handling and Storage

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HANDLING
Directions for Safe Handling: Do not breathe vapor. Avoid
contact with eyes, skin, and clothing.
STORAGE
Conditions of Storage: Keep tightly closed. Store in a cool dry
place.

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8 - Exposure Controls / Personal Protection

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ENGINEERING CONTROLS
Safety shower and eye bath. Mechanical exhaust required.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Use respirators and components tested and
approved under appropriate government standards such as NIOSH (US)
or CEN (EU). Where risk assessment shows air-purifying respirators
are appropriate use a full-face respirator with multi-purpose
combination (US) or type ABEK (EN 14387) respirator cartridges as
a backup to engineering controls. If the respirator is the sole
means of protection, use a full-face supplied air respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.

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9 - Physical and Chemical Properties

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AppearanceColor: Deep yellow-green
Form: Clear liquid
PropertyValueAt Temperature or Pressure
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pH N/A
BP/BP Range106,000 °C6,000 mmHg
MP/MP RangeN/A
Flash Point95,000 °CMethod: closed cup
FlammabilityN/A
Autoignition TempN/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion LimitsN/A
Vapor PressureN/A
SG/Density1,1760 g/cm3
Partition Coefficient N/A
ViscosityN/A
Vapor DensityN/A
Saturated Vapor Conc. N/A
Evaporation RateN/A
Bulk DensityN/A
Decomposition Temp.N/A
Solvent ContentN/A
Water ContentN/A
Surface TensionN/A
ConductivityN/A
Miscellaneous DataN/A
SolubilityN/A

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10 - Stability and Reactivity

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STABILITY
Materials to Avoid: Strong oxidizing agents.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Silicon oxide, Selenium/selenium oxides.

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11 - Toxicological Information

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SIGNS AND SYMPTOMS OF EXPOSURE
To the best of our knowledge, the chemical, physical, and
toxicological properties have not been thoroughly investigated.
ROUTE OF EXPOSURE
Multiple Routes: May be harmful by inhalation, ingestion, or
skin absorption. May cause irritation.
TARGET ORGAN INFORMATION
Liver.

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12 - Ecological Information

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No data available.

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13 - Disposal Considerations

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SUBSTANCE DISPOSAL
Dissolve or mix the material with a combustible solvent and burn
in a chemical incinerator equipped with an afterburner and
scrubber. Observe all federal, state, and local environmental
regulations.

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14 - Transport Information
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RID/ADR
UN#: 2810
Class: 6.1
PG: III
Proper Shipping Name: Toxic liquid, organic, n.o.s.
IMDG
UN#: 2810
Class: 6.1
PG: III
Proper Shipping Name: Toxic liquid, organic, n.o.s.
Marine Pollutant: No
Severe Marine Pollutant: No
Technical Name: Required
IATA
UN#: 2810
Class: 6.1
PG: III
Proper Shipping Name: Toxic liquid, organic, n.o.s.
Inhalation Packing Group I: No
Technical Name: Required

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15 - Regulatory Information

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CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 034-002-00-8
NOTA: A
INDICATION OF DANGER: T-N
Toxic. Dangerous for the environment.
R-PHRASES: 23/25-33-50/53
Toxic by inhalation and if swallowed. Danger of cumulative
effects. Very toxic to aquatic organisms, may cause long-term
adverse effects in the aquatic environment.
S-PHRASES: 20/21-28-45-60-61
When using do not eat, drink, or smoke. After contact with
skin, wash immediately with plenty of soap-suds. In case of
accident or if you feel unwell, seek medical advice immediately
(show the label where possible). This material and its
container must be disposed of as hazardous waste. Avoid release
to the environment. Refer to special instructions/safety data
sheets.
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 3
Self-Classification

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16 - Other Information

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WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Inc.,
shall not be held liable for any damage resulting from handling or
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from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2010 Co. License granted to make
unlimitedpaper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
ALDRICHwww.molbase.com

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SECTION 16 - ADDITIONAL INFORMATION
N/A