SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 02/NOV/2005
Date Updated: 22/JUL/2004
Version 1.2
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name DICHLORO(METHYL)PHENYLSILANE, 98%
Product Number 440116
Company Sigma-Aldrich Pty. Ltd.
12 Anella Avenue
Castle Hill NSW 2154
Australia
Technical Phone # +61 2 9841 0555 (1800 800 097)
Fax +61 2 9841 0500 (1800 800 096)
Emergency Phone # +44 8701906777 (1800 448 465)
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
DICHLORO(METHYL)PHENYLSILANE 149-74-6 205-746-2 None
Formula C7H8Cl2Si
Molecular Weight 191.13 AMU
Synonyms Dichlor-fenyl-methylsilane (Czech) *
Dichloromethylphenylsilane *
Phenylmethyldichlorosilane
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
May cause heritable genetic damage. Reacts violently with water.
Toxic by inhalation, in contact with skin and if swallowed. Causes
burns. Danger of serious damage to health by prolonged exposure.
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
AFTER EYE CONTACT
Assure adequate flushing of the eyes by separating the eyelids
with fingers.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician immediately.
5 - Fire Fighting Measures
CONDITIONS OF FLAMMABILITY
Under fire conditions, material may decompose to form flammable
and/or explosive mixtures in air. Prevent formation of static
electricity.
EXTINGUISHING MEDIA
Suitable: Carbon dioxide, dry chemical powder, or appropriate
foam.
Unsuitable: Do not use water.
SPECIAL RISKS
Specific Hazard(s): Combustible liquid. 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.
6 - Accidental Release Measures
PERSONAL PRECAUTION PROCEDURES TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
Absorb on sand or vermiculite and place in closed containers for
disposal. Ventilate area and wash spill site after material
pickup is complete.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe vapor. Do not get
in eyes, on skin, on clothing. Avoid prolonged or repeated
exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from heat
and open flame. Store in a cool dry place.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Use only in a chemical fume hood.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse. Discard contaminated shoes.
PERSONAL PROTECTIVE EQUIPMENT
Special Protective Measures: Wear appropriate government approved
respirator, chemical-resistant gloves, safety goggles, other
protective clothing. Faceshield (8-inch minimum).
9 - Physical and Chemical Properties
Appearance N/A
Property Value At Temperature or Pressure
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pH N/A
BP/BP Range 205 藲C 760 mmHg
MP/MP Range N/A
Flash Point 83 藲C Method: closed cup
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure N/A
SG/Density 1.176 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Reactions to Avoid: Reacts violently with:
Conditions to Avoid: This product hydrolyzes rapidly to form
hydrochloric acid
Materials to Avoid: Water, Strong acids, Strong bases, Strong
oxidizing agents, Alcohols.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Hydrogen gas, Hydrogen chloride gas, Silicon dioxide, Formaldehyde.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: VV3530000
ACUTE TOXICITY
LC50
Inhalation
Mammal
150 mg/m3
Remarks: Blood:Other changes. Lungs, Thorax, or
Respiration:Acute pulmonary edema. Liver:Fatty liver
degeneration.
SIGNS AND SYMPTOMS OF EXPOSURE
Material is extremely destructive to tissue of the mucous
membranes and upper respiratory tract, eyes, and skin.
Inhalation may result in spasm, inflammation and edema of the
larynxand bronchi, chemical pneumonitis, and pulmonary edema.
Symptoms of exposure may include burning sensation, coughing,
ALDRICH - 440116 www.sigma-aldrich.com Page 3
wheezing, laryngitis, shortness of breath, headache, nausea, and
vomiting. To the best of our knowledge, the chemical, physical,
and toxicological properties have not been thoroughly
investigated. Blood effects.
ROUTE OF EXPOSURE
Inhalation: May be fatal if inhaled.
Multiple Routes: Harmful if swallowed or absorbed through skin.
TARGET ORGAN INFORMATION
Bone marrow. Eyes. Blood.
CHRONIC EXPOSURE - CARCINOGEN
Result: Carcinogen.
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
This combustible material may be burned in a chemical incinerator
equipped with an afterburner and scrubber. Observe all federal,
state, and local environmental regulations.
14 - Transport Information
RID/ADR
UN#: 2437
Class: 8
PG: II
Proper Shipping Name: Methylphenyldichlorosilane
IMDG
UN#: 2437
Class: 8
PG: II
Proper Shipping Name: Methylphenyldichlorosilane
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 2437
Class: 8
PG: II
Proper Shipping Name: Methylphenyldichlorosilane
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: T
Toxic.
R-PHRASES: 46-14-23/24/25-34-48
May cause heritable genetic damage. Reacts violently with
water. Toxic by inhalation, in contact with skin and if
swallowed. Causes burns. Danger of serious damage to health by
prolonged exposure.
S-PHRASES: 53-26-27-36/37/39-45
Avoid exposure - obtain special instructions before use. In
case of contact with eyes, rinse immediately with plenty of
ALDRICH - 440116 www.sigma-aldrich.com Page 4
water and seek medical advice. Take off immediately all
contaminated clothing. Wear suitable protective clothing,
gloves, and eye/face protection. In case of accident or if you
feel unwell, seek medical advice immediately (show the label
where possible).
16 - Other Information
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. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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