Print
Chemical Datasheet

DECAHYDRONAPHTHALENE
2
2 0
 

Chemical Identifiers

UN/NA Number CAS Number CHRIS Code DOT Hazard Label
  • 1147
  • 91-17-8
  • DHN
  • FLAMMABLE LIQUID
NFPA 704:
  • Red 2 -- Flammability: Ignites when moderately heated
  • Blue 2 -- Health Hazard: Hazardous - use breathing apparatus
  • Yellow 0 -- Reactivity: Normally stable
General Description
A clear colorless liquid with an aromatic odor. Flash point 134°F. Less dense than water and insoluble in water. Vapors heavier than air.

Hazards

Reactivity Alerts
Air & Water Reactions
Flammable. Insoluble in water.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. (ERG, 2008)
Health Hazard
Inhalation or ingestion irritates nose and throat, causes numbness, headache, vomiting; urine may become blue. Irritates eyes. Liquid de-fats skin and causes cracking and secondary infection; eczema may develop. (USCG, 1999)
Reactivity Profile
Saturated aliphatic hydrocarbons, such as DECAHYDRONAPHTHALENE, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. Oxidizes readily in air to form unstable peroxides that may explode spontaneously [Bretherick, 1979 p.151-154].
Belongs to the Following Reactive Group(s)

Response Recommendations

Firefighting
Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may spread fire. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide. (AAR, 2003)
Non-Fire Response
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Use water spray to knock-down vapors. (AAR, 2003)
Protective Clothing
Air mask or self-contained breathing apparatus if in enclosed tank; rubber gloves or protective cream; goggles or face shield. (USCG, 1999)
First Aid
INHALATION: remove to fresh air.

EYES: flush with water for at least 15 min.

SKIN: wash with water and mild soap.

INGESTION: give emetic such as warm salt water, followed by a mild cathartic; direct physician to conserve liver and kidney function. (USCG, 1999)

Physical Properties

Molecular Formula:
  • C10H18
Flash Point: 134.0 ° F (USCG, 1999)
Lower Explosive Limit: 0.7 % (USCG, 1999)
Upper Explosive Limit: 5.4 % (USCG, 1999)
Autoignition Temperature: 482.0 ° F (USCG, 1999)
Melting Point: -44.0 ° F (USCG, 1999)
Vapor Pressure: data unavailable
Vapor Density: data unavailable
Specific Gravity: 0.89 at 68.0 ° F (USCG, 1999)
Boiling Point: 383.0 ° F at 760.0 mm Hg (USCG, 1999)
Molecular Weight: 138.2 (USCG, 1999)
Water Solubility: data unavailable
AEGL: data unavailable
ERPG: data unavailable
TEEL-1 TEEL-2 TEEL-3
1.5 ppm 10.0 ppm 75.0 ppm
(SCAPA, 2008)
IDLH: data unavailable

Regulatory Information

Regulatory Names: none
CAA RMP: Not a regulated chemical.
CERCLA: Not a regulated chemical.
EHS (EPCRA 302): Not a regulated chemical.
TRI (EPCRA 313): Not a regulated chemical.
RCRA Chemical Code: none

Alternate Chemical Names