P120-20-110
Issue: B
MATERIAL SAFETY DATA SHEET Rev Date: 01-02-05
Page: 1 of 6
PRODUCT NAME : IN-SITU HYDROPHOBIC MONOMER
1. Product and Company Identification
Product Name: HMDSO Hydrophobic Monomer
Synonyms: Hexamethyldisiloxane
Item Numbers : E400-00-403, E420-47-500
European Contact Details US Contact Details
BOC Edwards, Manor Royal, Crawley, BOC Edwards, 301 Ballardvale Street,
West Sussex, RH10 2LW, England Wilmington, MA 01887
General enquiries General enquiries
UK : +44 (0)1293 528844 +(1) 978-658-5410
France : +(33) 1 47 98 24 01 Toll Free: 1-800-848-9800
Germany : +(49) 6420-82-410
Italy : +(39) 0248-4471 24 h Emergency telephone number:
Chemtrec : 1-800-424-9300
2. Composition/Information on Ingredients
Ingredient % Weight CAS No Hazard class* Risk phrase*
Hexamethyldisiloxane >98 107-46-0 F 11
(C6H18OSi2)
*Hazard class & Risk phrase. These columns are only completed for ingredients which are classified as hazardous
under EU Directive (67/548/EEC, as amended) and are present in sufficient concentration to make the overall
substance hazardous. In all other situations, the column will be completed as 鈥淣ot applicable鈥?.
OSHA Regulatory Status: This material is classified as hazardous under OSHA regulations.
3. Hazards Identification
EMERGENCY OVERVIEW
Clear, colourless, liquid. Irritates skin and eyes, and may be harmful if swallowed or inhaled.
Highly flammable. Vapours may form an explosive mixure with air.
Eye Effects: May cause irritation.
Skin Effects: May cause irritation.
Ingestion/Oral Effects: May cause irritation of the digestive tract. May cause unconsciousness, headache, nausea,
fatigue and dizziness.
Inhalation Effects: Inhalation of high concentrations may be harmful. Significant over-exposure may cause
dizziness, incoordination, unconsciousness and lung effects.
705
DCC1 No :
BOC Edwards is part of BOC Limited
The stripe symbol is a trade mark of the BOC Group
Ref 2D01-010 form issue 1.2
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P120-20-110
Issue: B
MATERIAL SAFETY DATA SHEET Rev Date: 01-02-05
Page: 2 of 6
PRODUCT NAME : IN-SITU HYDROPHOBIC MONOMER
MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE: No data available.
NFPA Hazard codes HMIS Hazard codes Rating System
Health 1 Health 1 0 = No Hazard
Flammability 3 Flammability 3 1 = Slight hazard
Instability 1 Reactivity 1 2 = Moderate Hazard
3 = Serious Hazard
4 = Severe hazard
4. First Aid Measures
Flush with plenty of water for at least 15 minutes, occasionally lifting the upper and lower
Eyes:
eyelids. Seek medical attention.
Remove contaminated clothing and shoes. Wash skin with plenty of water for at least 15
Skin:
minutes. Seek medical attention.
Wash mouth out with water. Seek medical attention.
Ingestion/Oral:
Remove to fresh air. If breathing problems occur, a qualified individual should administer
Inhalation:
oxygen or artificial respiration as indicated. Seek immediate medical attention.
Note to physicians: treat symptomatically and supportively.
Other Information:
5. Fire Fighting Measures
Extinguishing Media: Carbon dioxide, dry powder.
Fire and Explosion Hazard: Flammable liquid and vapours. Vapours may form an explosive mixture with air,
and can travel to a source of ignition and flash back. Will burn if involved in a fire.
Containers may explode in the heat of a fire.
Special Protective Equipment Fire fighters should wear a self-contained breathing apparatus (SCBA) in pressure
for Fire Fighters: demand, NIOSH (or equivalent) approved, and full protective gear.
For Flammability Properties - see Section 9
6. Accidental Release Measures
Avoid discharge into the environment. Isolate the area of the release. Use spark-proof tools, remove all sources of
ignition and wear proper personal protective equipment as described in section 8. Absorb spills in suitable inert
material (e.g. sand, earth or vermiculite), then place in suitable tightly closed containers for disposal. Absorbed
material may still present a fire hazard: handle and dispose of the material accordingly.
705
DCC1 No :
BOC Edwards is part of BOC Limited
The stripe symbol is a trade mark of the BOC Group
Ref 2D01-010 form issue 1.2
.
P120-20-110
Issue: B
MATERIAL SAFETY DATA SHEET Rev Date: 01-02-05
Page: 3 of 6
PRODUCT NAME : IN-SITU HYDROPHOBIC MONOMER
7. Handling and Storage
Handling: Use spark-proof tools and explosion-proof equipment. Avoid breathing dust, vapour, mist or gas.
Avoid contact with skin and eyes. Use only in a chemical fume hood. Change contaminated clothes
promptly due to fire hazard. Do not smoke in areas where the product is used or stored. Wash
thoroughly after handling, and before meals, breaks, and leaving the work area. Empty containers
may contain flammable product residue. Handle and dispose of accordingly. Do not reuse empty
containers until appropriately reconditioned.
Storage: Keep away from sources of ignition. Store in a cool, dry place in a tightly closed container. Keep in
a flammables storage area.
8. Exposure Controls/Personal Protection
Exposure Limits
Ingredient ACGIH - TLV - OSHA - PEL Occupational Exposure
Limits EH40 (UK)
Hexamethyldisiloxane None listed None listed None listed
Personal Protection:
Engineering Measures: Use adequate ventilation to keep airborne concentrations low.
Respiratory Protection: Comply with the OSHA respirator regulations found in 29 CFR 1910.134 or
European Standard EN 149. Always use a NIOSH or European Standard EN 149
approved respirator when necessary.
Hand/Skin Protection: Wear appropriate protective gloves to prevent skin exposure. Wear appropriate
protective clothing to prevent skin exposure.
Eye/Face Protection: Wear appropriate chemical safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European Standard EN166.
Hygiene Measures: Do not handle with bare hands and without wearing the appropriate safety
clothing/equipment: see above. Wash thoroughly after handling, and before
meals, breaks, and leaving the work area.
Other/General Protection: Do not smoke in areas where this product is used or stored.
9. Physical and Chemical Properties
0
C/ 0F
Appearance and Odour Clear colourless liquid Boiling Point 101/214
0
C/ 0F
pH (as supplied) No data available Freezing Point -59/-74
0
C/ 0F
Solubility in Water Immiscible with water Auto Ignition 340/644
0
C/ 0F
Volatile Content by Volume No data available Flash Point -1/30
Specific Gravity 0.76
Vapour Pressure (mbar) 44 Vapour Pressure (Torr) 33
Explosion limit (lower) 0.5% volume Explosion limit (upper) 22.9% volume
0
Molecular weight 162.38 Viscosity 0.5 mPa.s @ 25 C
705
DCC1 No :
BOC Edwards is part of BOC Limited
The stripe symbol is a trade mark of the BOC Group
Ref 2D01-010 form issue 1.2
.
P120-20-110
Issue: B
MATERIAL SAFETY DATA SHEET Rev Date: 01-02-05
Page: 4 of 6
PRODUCT NAME : IN-SITU HYDROPHOBIC MONOMER
10. Stability and Reactivity
Stability: Stable under normal temperatures and pressures.
Material/Conditions to Avoid: Strong acids, strong bases and strong oxidizing agents. Heat and ignition
sources. Exposure to moist air or water.
Hazardous Decomposition: Carbon monoxide, carbon dioxide, silicon oxide. Hazardous polymerization will
not occur.
11. Toxicological Information
For a comprehensive description for the various toxicological (health) effects which may arise if the user comes
into contact with the substance or preparation refer to Section 3 Hazards Identification.
Subacute to chronic toxicity: hexamethyldisiloxane is mildly irritating and mildly toxic. Exposure to very high
concentrations by inhalation or ingestion may cause somnolence, ataxia, convulsions or flaccid paralysis. Chronic
exposure may cause changes to respiration, liver, kidneys, bladder, adrenal gland, metabolism and blood serum
composition.
RTECS#: CAS# 107-46-0: JM9237000
Animal Data:
LD50 value: Oral: LDLo: 50 gm/kg (guinea pig), 8 mL/kg (rat)
Dermal: 16 ml /kg (rabbit)
LC50 value: 15956 ppm/4h (rat)
Irritation of skin: Mild: 500 mg/24h (rabbit)
Mild: 100 碌L (rabbit)
Irritation of eyes:
Carcinogenicity:
Not listed by ACGIH, IARC, NIOSH, NTP or OSHA.
12. Ecological Information
The material is non-biodegradable and can accumulate in the environment.
Ecotoxicity: Log Pow > 4.
13. Disposal Considerations
Dispose of in compliance with national/federal, state and local regulations.
705
DCC1 No :
BOC Edwards is part of BOC Limited
The stripe symbol is a trade mark of the BOC Group
Ref 2D01-010 form issue 1.2
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P120-20-110
Issue: B
MATERIAL SAFETY DATA SHEET Rev Date: 01-02-05
Page: 5 of 6
PRODUCT NAME : IN-SITU HYDROPHOBIC MONOMER
14. Transport Information
This product is classified as dangerous under transport regulations.
PARAMETER EUROPEAN CANADIAN TDG UNITED STATES DOT
Proper Shipping Name Flammable Liquid, N.O.S. Flammable Liquid, N.O.S. Flammable Liquid, N.O.S.
(hexamethyldisiloxane) (hexamethyldisiloxane) (hexamethyldisiloxane)
Hazard Class 3 3 3
Identification Number UN 1993 UN 1993 UN 1993
Shipping Label FLAMMABLE FLAMMABLE FLAMMABLE
Packing group : II Symbol : F - Highly Flammable
Land transport ADR/RID - Class : 3; Item : 3b; Danger code (Kemler) : 33.
Maritime transport IMDG - Class 3. Air transport ICAO/IATA - Class 3.
15. Regulatory Information
European Regulatory Information
This product has been classified in accordance with the Dangerous Substances Directive (67/548/EEC, as
amended) and the Preparations Directive (88/379/EEC, as amended), implemented in the UK as the Chemical
(Hazard Information and Packing) Regulations 1994 (CHIP, as amended).
Classified as dangerous to supply : Yes
Risk Phrases : R11 (Highly flammable)
Safety Phrases : S9 (Keep container in a well-ventilated place)
S16 (Keep away from sources of ignition - No smoking)
S29 (Do not empty into drains)
S33 (Take precautionary measures against static discharges)
S43 (In case of fire use sand, CO2 or dry powder extinguisher. Never use water.)
Symbols : F: Highly flammable
EINECS Number: 203-492-7
United States Regulatory Information
All materials contained in this product are listed on the U.S. Toxic Substances Control Act (TSCA).
SARA TITLE III - SECTION 313 SUPPLIER NOTIFICATION:
This product does not contain toxic chemicals subject to the reporting requirements of section 313 of the Emergency
Planning and Community Right-to-Know Act (EPCRA) of 1986 and 40 CFR Part 372.
State lists - None of the chemicals in this product are present on state lists from CA, PA, MN, MA, FL or NJ.
California Proposition 65: This product does not contain chemicals known to the State of California to cause cancer
or reproductive toxicity.
Health & Safety Reporting List - None of the chemicals in this product are on the Health & Safety Reporting List.
Chemical Test Rule - None of the chemicals in this product are under a Chemical Test Rule.
TSCA - None of the chemicals in this product are listed under TSCA Section 12b or have a SNUR under TSCA.
705
DCC1 No :
BOC Edwards is part of BOC Limited
The stripe symbol is a trade mark of the BOC Group
Ref 2D01-010 form issue 1.2
.
P120-20-110
Issue: B
MATERIAL SAFETY DATA SHEET Rev Date: 01-02-05
Page: 6 of 6
PRODUCT NAME : IN-SITU HYDROPHOBIC MONOMER
Clean Air Act - This product does not contain any hazardous air pollutants or Class 1/Class 2 ozone depletors.
Clean Water Act - None of the chemicals in this product are listed as hazardous substances, priority pollutants or
toxic pollutants under the Clean Water Act.
Canadian Regulatory Information
WHMIS Classification: B2
CAS# 107-46-0 is included in the Canadian DSL list.
16. Other Information
This MSDS is compiled in accordance with ANSI Z400.1 and the EU Safety Data Sheet Directive 91/155/EEC.
Sources of information for this data sheet:
鈥? MSDS for Hexamethyldisiloxane, 98+%. MSDS creation date: 10/17/1996. Revision #1 date: 9/25/2002.
Glossary : CAS, Chemical Abstracts Service; NFPA, National Fire Protection Association; HMIS, Hazardous
Material Information Service; LD, Lethal Dose; LC, Lethal Concentration; ACGIH, American Conference of
Governmental Industrial Hygienists; TLV, threshold limit value; OSHA, Occupational Safety and Health
Administration, US department of Labour; PEL, Permissible exposure limit; EH40 (UK), HSE Guidance Note EH40
Occupational exposure limits; EINECS, European Inventory of Existing Commercial Substances; PPM, parts per
million; TWA, Time-Weighted Average; STEL, Short Term Exposure Limit; Canadian TDG, Canadian
Transportation of Dangerous Goods; US DOT, US Department of Transportation.
HSDB, Hazardous Substances Data Bank; IARC, International Agency for Research on Cancer; IATA, International
Air Transport Association; ICAO, International Civil Aviation Organisation; RTECS, Register of Toxic Effects of
Chemical Substances; CHEMID, Chemical Identification; DSL, Domestic Substances List ; TSCA, Toxic Substances
Control Act Public Law 94-469: CERCLA, Comprehensive Environmental Response, Compensation and Liability
Act; EPCRA. Emergency Planning and Community Right-to-Know Act; CAA, Clean Air Act; MSHA, Mine Safety and
Health Administration; NIOSH, National Institute for Occupational Safety and Health; NTP, National Toxicology
Program; US, SARA (Title III), Superfund Amendments and Reauthorization Act.; SARA 313, Superfund
Amendments and Reauthorization Act, Section 313; SNUR, Significant New Use Rule; EHS, Extremely Hazardous
Substance; WHMIS, Workplace Hazardous Materials Information System.
Revisions
___________________________________________________________________________________________
Although the information and recommendations in this data sheet are to the best of our knowledge correct, it is recommended that
you make your own determination of the material鈥檚 suitability for your purpose before you use it. The information contained in this
data sheet has been reproduced from the manufacturers data, the accuracy of this information is the responsibility of the
manufacturer. BOC Edwards accept no responsibility for damage of any nature resulting from the use of, or the reliance upon this
data sheet.
705
DCC1 No :
BOC Edwards is part of BOC Limited
The stripe symbol is a trade mark of the BOC Group
Ref 2D01-010 form issue 1.2
.
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