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Chemical Datasheet

HYDROGENATED TERPHENYLS

Chemical Identifiers

CAS Number UN/NA Number DOT Hazard Label USCG CHRIS Code
  • 61788-32-7
 none data unavailable none
NIOSH Pocket Guide International Chem Safety Card
Hydrogenated terphenyls
  • HYDROGENATED TERPHENYLS (40% HYDROGENATED)
NFPA 704
data unavailable
General Description
Clear, oily, pale-yellow liquid with a faint odor. A mixture of numerous compounds and isomers depending on the degree and conditions of hydrogenation The 40% hydrogenated mixture has bp: 340°C, density: 1.00 g cm-3, and is insoluble in water. Used as a plasticizer and as a heat-transfer medium. Can be absorbed through the skin and by ingestion.

Hazards

Reactivity Alerts
none
Air & Water Reactions
No rapid reaction with air. No rapid reaction with water.
Fire Hazard
No information available.
Health Hazard
Excerpt from NIOSH Pocket Guide for Hydrogenated terphenyls:

Exposure Routes: Inhalation, ingestion, skin and/or eye contact

Symptoms: Irritation eyes, skin, respiratory system; liver, kidney, hematopoietic damage

Target Organs: Eyes, skin, respiratory system, liver, kidneys, hematopoietic system (NIOSH, 2024)
Reactivity Profile
HYDROGENATED TERPHENYLS are non-flammable (flash-point 157°C for 40% hydrogenated mixture), but combustible. Resist decomposition but break down to produce acrid smoke when heated sufficiently. Incompatible with strong oxidizing agents.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

Response Recommendations

Isolation and Evacuation
No information available.
Firefighting
No information available.
Non-Fire Response
No information available.
Protective Clothing
Excerpt from NIOSH Pocket Guide for Hydrogenated terphenyls:

Skin: PREVENT SKIN CONTACT - Wear appropriate personal protective clothing to prevent skin contact.

Eyes: PREVENT EYE CONTACT - Wear appropriate eye protection to prevent eye contact.

Wash skin: WHEN CONTAMINATED - The worker should immediately wash the skin when it becomes contaminated.

Remove: WHEN WET OR CONTAMINATED - Work clothing that becomes wet or significantly contaminated should be removed and replaced.

Change: DAILY - Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises. (NIOSH, 2024)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
Excerpt from NIOSH Pocket Guide for Hydrogenated terphenyls:

Eye: IRRIGATE IMMEDIATELY - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.

Skin: SOAP WASH IMMEDIATELY - If this chemical contacts the skin, immediately wash the contaminated skin with soap and water. If this chemical penetrates the clothing, immediately remove the clothing, wash the skin with soap and water, and get medical attention promptly.

Breathing: RESPIRATORY SUPPORT - If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as possible.

Swallow: MEDICAL ATTENTION IMMEDIATELY - If this chemical has been swallowed, get medical attention immediately. (NIOSH, 2024)

Physical Properties

Chemical Formula:
  • (C6Hn)3
Flash Point: 315°F (40% hydrogenated) (NIOSH, 2024)
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: 1.003 to 1.009 at 77°F (40% hydrogenated) (NIOSH, 2024)
Boiling Point: 644°F at 760 mmHg (40% hydrogenated) (NIOSH, 2024)
Molecular Weight: 298 (40% hydrogenated) (NIOSH, 2024)
Water Solubility: Insoluble (NIOSH, 2024)
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
Hydrogenated terphenyl (61788-32-7) 1.5 ppm 47 ppm 280 ppm
(DOE, 2024)

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