SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 31/MAY/2005
Date Updated: 13/MAR/2004
Version 1.3
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 TETRAETHYL ORTHOSILICATE,
REAGENTPLUSTM, >=99%
Product Number 236209
Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Australia
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
ETHYL ORTHOSILICATE 78-10-4 201-083-8 014-005-00-0
Formula C8H20O4Si
Molecular Weight 208.33 AMU
Synonyms Ethyl orthosilicate * Ethyl silicate
(ACGIH:OSHA) * Etylu krzemian (Polish) * Silane,
tetraethoxy- * Silicate d'ethyle (French) *
Silicate tetraethylique (French) * TEOS *
Tetraethoxysilane * Tetraethyl orthosilicate *
Tetraethylsilikat (Czech)
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Flammable. Harmful by inhalation. Irritating to eyes and
respiratory system.
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 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.
5 - Fire Fighting Measures
CONDITIONS OF FLAMMABILITY
Under fire conditions, material may decompose to form flammable
and/or explosive mixtures in air.
EXTINGUISHING MEDIA
Suitable: Water spray. Carbon dioxide, dry chemical powder, or
appropriate foam.
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
Combustible liquid.
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 respirator, chemical safety goggles, 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. Avoid
contact with eyes, skin, and clothing. Avoid prolonged or
repeated exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from heat
and open flame. Store under nitrogen.
SPECIAL REQUIREMENTS: Moisture sensitive.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Mechanical exhaust required. Safety shower and eye bath.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling.
EXPOSURE LIMITS
Country Source Type Value
Poland NDS 80 MG/M3
Poland NDSCh 250 MG/M3
Poland NDSP -
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EXPOSURE LIMITS - DENMARK
Source Type Value
OEL TWA 85 mg/m3
10 ppm
EXPOSURE LIMITS - GERMANY
Source Type Value
TRGS 900 OEL 170 mg/m3
20 ppm
Remarks: =1=
EXPOSURE LIMITS - NORWAY
Source Type Value
OEL 85 mg/m3
10 ppm
EXPOSURE LIMITS - SWITZERLAND
Source Type Value
OEL OEL 85 mg/m3
10 ppm
EXPOSURE LIMITS - UNITED KINGDOM
Source Type Value
OEL OEL 87 mg/m3
10 ppm
OEL STEL 260 mg/m3
30 ppm
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.
9 - Physical and Chemical Properties
Appearance Physical State: Clear liquid
Color: Colorless
Property Value At Temperature or Pressure
pH N/A
BP/BP Range 163 - 167 掳C
MP/MP Range N/A
Flash Point 48 掳C Method: closed cup
Flammability N/A
Autoignition Temp 230 掳C
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits Lower: 1.3 %
Upper: 23 %
Vapor Pressure < 1 mmHg 20 掳C
SG/Density 0.933 g/cm3
Partition Coefficient N/A
Viscosity < 0.001 Pas
Vapor Density > 1 g/l
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
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Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Conditions of Instability: May decompose on exposure to moist air
or water.
Materials to Avoid: Strong oxidizing agents, Strong acids.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Silicon oxide.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
RTECS NUMBER: VV9450000
ACUTE TOXICITY
LD50
Oral
Rat
6270 mg/kg
LD50
Skin
Rabbit
6300 UL/KG
IRRITATION DATA
Eyes
Human
3,000 ppm
Skin
Rabbit
500 mg
24H
Remarks: Moderate irritation effect
Eyes
Rabbit
100 mg
Remarks: Mild irritation effect
Eyes
Rabbit
500 mg
24H
Remarks: Mild irritation effect
Eyes
Guinea pig
2,500 ppm
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2H
Remarks: Severe irritation effect
SIGNS AND SYMPTOMS OF EXPOSURE
Prolonged exposure can cause: Lung irritation, chest pain, and
edema which may be fatal. To the best of our knowledge, the
chemical, physical, and toxicological properties have not been
thoroughly investigated.
ROUTE OF EXPOSURE
Skin Contact: Causes skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes eye irritation.
Inhalation: Material is irritating to mucous membranes and upper
respiratory tract. Harmful if inhaled.
Ingestion: May be harmful if swallowed.
TARGET ORGAN INFORMATION
Liver. Kidneys. Lungs. Blood.
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. 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#: 1292
Class: 3
PG: III
Proper Shipping Name: Tetraethyl silicate
IMDG
UN#: 1292
Class: 3
PG: III
Proper Shipping Name: Tetraethyl silicate
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 1292
Class: 3
PG: III
Proper Shipping Name: Tetraethyl silicate
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 014-005-00-0
INDICATION OF DANGER: Xn
Harmful.
R-PHRASES: 10 20 36/37
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Flammable. Harmful by inhalation. Irritating to eyes and
respiratory system.
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 1
SWITZERLAND
SWISS POISON CLASS: 3
NORWAY
Declaration Number: 67460
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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