CLEARCO PRODUCTS
3430 G Progress Drive, Bensalem, PA 19020
Phone: (215) 639-2640
MATERIAL SAFETY EMERGENCY TELEPHONE
DATA SHEET CHEMTREC: 1-800-424-9300
NAME USED ON LABEL: POLYDIMETHYLSILOXANE 鈥? PSF-1.5cSt
CHEMICAL NAME: POLYDIMETHYLSILOXANE
SYNONYMS: OCTAMETHYLTRISILOXANE; MDM
CHEMICAL FAMILY: SILICONE
HMIS CODES HEALTH: 1 FLAMMABILITY: 3 REACTIVITY: 0
INGREDIENTS
IDENTITY CAS NO. % TLV OSHA PEL
HEXAMETHYLDISILOXANE 107-46-0 <2 not established
OCTAMETHYLTRISILOXANE 107-51-7 3-75 not established
DECAMETHYLTETRASILOXANE 141-62-8 3-95 not established
DODECAMETHYLPENTASILOXANE 141-63-9 3-95 not established
TETRADECAMETHYHEXASILOXANE 107-52-8 3-75 not established
HIGHER LINEAR SILOXANES 63142-62-9 <5 not established
PHYSICAL DATA
Boiling Point: >150掳C Freezing Point: (-86掳C)
Specific Gravity: 0.85 Vapor Pressure, 25掳: 4mm
Vapor Density (air = 1): >1 Solubility in water: 34parts per billion
% volatiles: 100 Evaporation rate (butyl acetate = 1): 0.7
Molecular Weight: 237-550 Viscosity: 1-2cSt.
Appearance & Color: Clear, nearly odorless liquid
FIRE & EXPLOSION DATA
Flash Point, COC: 39掳C (102掳F) Autoignition Temp: 418掳C (784掳F)
Flammability Limits- LEL: 0.9% UEL: 13.8%
Extinguishing Media: Water spray, foam, carbon dioxide, dry chemical.
Special Fire Fighting Procedures: Avoid eye and skin contact. Do not breathe fumes or
inhale vapors.
Unusual Fire and Explosion Hazards: Irritating fumes and organic acid vapors may
develop when material is exposed to elevated temperatures or open flame. Liquid
generates strong static charge when poured.
ENVIRONMENTAL INFORMATION
Spill response: May be hazardous to aquatic life if released to open waters. Cover spill
with absorbent material. Transfer to a suitable container for disposal.
Recommended Disposal: May be incinerated. Alternately, absorb onto clay or
vermiculite and dispose of absorbent material as solid waste. Follow all chemical
pollution control regulations.
HEALTH HAZARD DATA
Eye Contact: Vapors may cause immediate or delayed severe eye irritation.
Skin contact: May produce irritation or contact dermatitis which may be delayed several
hours. Prompt and thorough washing with soap and water will reduce or eliminate
potential dermal effects.
Inhalation: Inhalation of vapors or particulates will irritate the respiratory tract.
Overexposure may produce coughing, headache and nausea.
Oral Toxicity- rat, LD50: >5000mg/kg
Chronic Toxicity: There are no known chronic effects related to this compound.
SUGGESTED FIRST AID
EYES: In case of contact, immediately flush eyes with flowing water for at least 15
minutes. Get medical attention.
SKIN: Flush with water, then wash with soap and water.
INHALATION: Move exposed individual to fresh air. Call a physician.
INGESTION: Never give fluids or induce vomiting if patient is unconscious or having
convulsions. Get medical attention.
REACTIVITY DATA
Stability: Stable in sealed containers in a cool place.
Conditions to avoid: Combustible; avoid contact with heat, sparks or open flame.
Incompatibility (materials to avoid): Avoid contact with peroxides, oxidizing agents.
Hazardous decomposition products: Organic Acid Vapors.
SPECIAL PROTECTION INFORMATION
Ventilation: Local exhaust is required. Mechanical is recommended.
Respiratory Protection: If exposure exceeds TLV air-supplied or combination organic
vapor amine gas respirator.
Eye and Face Protection: Chemical worker鈥檚 goggles. Do not wear contact lenses.
Other Clothing and Equipment: Rubber, neoprene or nitrile gloves. An eyewash and
emergency shower should be available. Launder clothing before reuse.
OTHER PRECAUTIONS
For research and industrial use only.
Storage and Handling: Store in sealed containers.
Containers require grounding during use.
TRANSPORTATION
DOT SHIPPING NAME: FLAMMABLE LIQUID, N.O.S. (POLYDIMETHYLSILOXANE)
DOT HAZARD CLASS: 3
DOT LABELS: Flammable Liquid
DOT ID No: UN1993 PG: III
Prepared by safety and environmental affairs ISSUE DATE PSF-1cSt: 6/14/04
SUPERSEDES: NONE
The information contained in this document has been gathered from reference materials and/or Clearco
Products test data and is to the best knowledge and belief of Clearco Products, Inc. accurate and reliable.
Such information is offered solely for your consideration, investigation and verification. It is not suggested
or guaranteed that the hazard precautions or procedures described are the only ones that exist. Clearco
Products makes no warranties, express or implied, with respect to the use of such information and
assumes no responsibility therefore.
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