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Chemical Datasheet

DIMETHYLPOLYSILOXANE

Chemical Identifiers

CAS Number UN/NA Number DOT Hazard Label USCG CHRIS Code
  • 9016-00-6
 none data unavailable
  • DMP
NIOSH Pocket Guide International Chem Safety Card
none
  • POLYDIMETHYLSILOXANE
NFPA 704
data unavailable
General Description
Colorless odorless liquid, Floats on water. (USCG, 1999)

Hazards

Reactivity Alerts
none
Air & Water Reactions
Insoluble in water.
Fire Hazard
No information available.
Health Hazard
Contact of liquid with eyes may cause temporary discomfort. Does not irritate skin. Harmless when ingested. (USCG, 1999)
Reactivity Profile
DIMETHYLPOLYSILOXANE is a weak reducing agent.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

Response Recommendations

Isolation and Evacuation
No information available.
Firefighting
Fire Extinguishing Agents Not to Be Used: Water may be ineffective.

Fire Extinguishing Agents: Foam, dry chemical, carbon dioxide. (USCG, 1999)
Non-Fire Response
No information available.
Protective Clothing
Safety goggles. (USCG, 1999)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
Except for eye contact, exposures generally do not require treatment.

EYES: flush with water. (USCG, 1999)

Physical Properties

Chemical Formula:
  • (C2H6OSi)n
Flash Point: 275 to 635°F (USCG, 1999)
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point: data unavailable
Vapor Pressure: data unavailable
Vapor Density (Relative to Air): data unavailable
Specific Gravity: 0.98 at 68°F (USCG, 1999) - Less dense than water; will float
Boiling Point: greater than 300°F at 760 mmHg (USCG, 1999)
Molecular Weight: data unavailable
Water Solubility: data unavailable
Ionization Energy/Potential: data unavailable
IDLH: data unavailable

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

Chemical PAC-1 PAC-2 PAC-3
Polydimethyl siloxane; (Dimethylpolysiloxane) (9016-00-6) 6.8 mg/m3 75 mg/m3 450 mg/m3
(DOE, 2018)

Regulatory Information

EPA Consolidated List of Lists

No regulatory information available.

CISA Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

Alternate Chemical Names