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EINECS 204-340-2
CAS No. 119-64-2 Density 0.97 g/cm3
PSA 0.00000 LogP 2.56540
Solubility Insoluble in water Melting Point -35 °C(lit.)
Formula C10H12 Boiling Point 210.29 °C at 760 mmHg
Molecular Weight 132.205 Flash Point 77.222 °C
Transport Information UN 3082 9/PG 3 Appearance colourless liquid with a mouldy smell
Safety 26-28-61-28A Risk Codes 19-36/38-51/53
Molecular Structure Molecular Structure of 119-64-2 (1,2,3,4-Tetrahydronaphthalene) Hazard Symbols IrritantXi, CorrosiveC

Benzocyclohexane;NSC 77451;Tetrahydronaphthalene;Tetralin;Tetranap;

Article Data 424

1,2,3,4-TETRAHYDRONAPHTHALENE Chemical Properties

1,2,3,4-Tetrahydronaphthalene(119-64-2) is also named as 1,2,3,4-tetrahydronaphthalin;1,2,3,4-Tetrahydronaphythalene;Benzocyclohexane;delta(sup5,7,9)-naphthantriene;delta5,7,9-naphthantriene;Naphthalene, 1,2,3,4-tetrahydro-;Naphthalene,1,2,3,4-tetrahydro-,and so on.1,2,3,4-Tetrahydronaphthalene(119-64-2) is colorless liquid with irritating odor.

CAS: 119-64-2
Molecular Formula: C10H12
Molecular Weight: 132.2
Molecular structure:
EINECS: 204-340-2
Molecular structure:
Melting point:  -35 °C(lit.)
Boiling point:  207 °C(lit.)
Density:  0.973 g/mL at 25 °C(lit.)
Vapor density:  4.55 (vs air)
Vapor pressure:  0.18 mm Hg ( 20 °C)
Refractive index:  n20/D 1.541(lit.)
Flash point:  171 °F
Water Solubility:  insoluble
Merck:  9221


1,2,3,4-Tetrahydronaphthalene(119-64-2) can be used as solvents and reagents for chromatographic analysis.

1,2,3,4-TETRAHYDRONAPHTHALENE Toxicity Data With Reference


skn-rbt 500 mg open SEV

   UCDS**    Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 1/12 ,1972.

eye-rbt 500 mg open

   AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 4 (1951),119.

orl-rat LD50:2860 mg/kg

   AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 4 (1951),119.

skn-rbt LD50:17 g/kg

   UCDS**    Union Carbide Data Sheet. (Industrial Medicine and Toxicology Dept., Union Carbide Corp., 270 Park Ave., New York, NY 10017) 1/12 ,1972.
RTECS:  QK3850000

1,2,3,4-TETRAHYDRONAPHTHALENE Consensus Reports

Reported in EPA TSCA Inventory.


Moderately toxic by ingestion. Mildly toxic by skin contact. An eye and severe skin irritant. Narcotic in high concentration. Reported as causing cataracts and kidney injury in experimental animals. Irritating to mucous membranes. Combustible when exposed to heat or flame; can react with oxidizing materials. Explosive in the form of vapor when exposed to heat or flame. To fight fire, use water, foam, CO2, dry chemical. Prolonged, close contact with air may cause an explosion. When heated to decomposition it emits acrid smoke and irritating fumes.

Hazard Codes:  Xi,N
Risk Statements:  19-36/38-51/53
Safety Statements:  26-28-61-28A
RIDADR:  UN 3082 9/PG 3
WGK Germany:  2
Hazardous Substances Data: 119-64-2(Hazardous Substances Data)

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