DECALIN

PRODUCT IDENTIFICATION

CAS NO. 91-17-8

DECALIN

EINECS NO.

202-046-9

FORMULA C10H18
MOL WT. 138.25
H.S. CODE  

TOXICITY

Oral rat LD50: 4170 mg/kg
SYNONYMS Decahydronaphthalene, (cis-trans mixture); Naphthane;
Perhydronaphthalene; Bicyclo(4.4.0)decane; Decahydronaphthalene; Decahydronaphthalin (Dutch); Decahidronaftaleno (Spanish); Décahydronaphtalène (French);

SMILES

Coal tar

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE Clear liquid with mild aromatic odor
MELTING POINT -40 C
BOILING POINT 182 - 190 C
SPECIFIC GRAVITY 0.870 - 0.90
SOLUBILITY IN WATER

Insoluble

pH

 

VAPOR DENSITY 4.8
AUTOIGNITION

250 C

NFPA RATINGS Health: 2 Flammability: 2 Reactivity: 0

REFRACTIVE INDEX

1.469 - 1.481
FLASH POINT

57 C

STABILITY Stable under ordinary conditions.

GENERAL DESCRIPTION & APPLICATIONS

Decalin and tetralin are the terms that indicate decahydro- or tetrahydroanaphthalene respectively. They are bicyclic organic compounds; clear liquid used as solvents for resins. Hydroanaphthalenes are produced by hydrogenation of naphthalene in the presence of a catalyst (platinum catalyst).  The commercial decalin is the mixture of cis- and trans- isomers  (typically 77:23) . The trans-isomer is more stable because of less steric interactions. Hydroanaphthalenes are used as industrial solvents for naphthalene, resins, oils, and waxes. It features high boiling point and thermal stability. They are used as components of stove and jet fuels. Hydronaphthalenes are also used as raw materials of functional polymers. They are used in preparing dyes, plasticizers, and insecticides. They are also used in heat transfer fluid, dye carrier,  fuel additives, lubricants, ore flotation and oilfield chemicals. These bicyclic compounds are moieties in transition-metal complex catalysts.
SALES SPECIFICATION

APPEARANCE

Clear liquid

CONTENT

98.0% min

DISTILLATION RANGE

182 - 190 C

WATER

0.1% max

TRANSPORTATION
PACKING 190kgs in Drum
HAZARD CLASS 3 (Packing Group: III)
UN NO. 1147
OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 20-36/37/38, Safety Phrases: 26-36