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ChemicalBook >> CAS DataBase List >>1,2,3,4-Tetrahydronaphthalene

1,2,3,4-Tetrahydronaphthalene

CAS No.
119-64-2
Chemical Name:
1,2,3,4-Tetrahydronaphthalene
Synonyms
TETRALIN;THN;TETRALINE;TETRAHYDRONAPHTHALENE;Naphthalene, 1,2,3,4-tetrahydro-;1,2,3,4-tetrahydro-naphthalen;etralin;TETRANAP;tetralene;Tetralina
CBNumber:
CB6146030
Molecular Formula:
C10H12
Molecular Weight:
132.2
MDL Number:
MFCD00001733
MOL File:
119-64-2.mol
MSDS File:
SDS
Last updated:2024-12-18 14:08:57

1,2,3,4-Tetrahydronaphthalene Properties

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
storage temp. Store below +30°C.
solubility 0.045g/l
form Fluid
color Colorless
Odor pungent menthol odor
explosive limit 0.8%, 100°F
Odor Threshold 0.0093ppm
Water Solubility INSOLUBLE
Sensitive Air Sensitive
Merck 14,9221
BRN 1446407
Dielectric constant 2.77
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
LogP 3.78 at 23℃
CAS DataBase Reference 119-64-2(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII FT6XMI58YQ
NIST Chemistry Reference Tetralin(119-64-2)
EPA Substance Registry System 1,2,3,4-Tetrahydronaphthalene (119-64-2)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H304-H315-H319-H351-H411
Precautionary statements  P202-P273-P301+P310-P302+P352-P305+P351+P338-P331
Hazard Codes  Xi,N,Xn
Risk Statements  19-36/38-51/53-65-40
Safety Statements  26-28-61-28A-62-36/37
RIDADR  UN 3082 9/PG 3
WGK Germany  2
RTECS  QK3850000
Autoignition Temperature 723 °F
TSCA  Yes
HS Code  2902 90 00
HazardClass  9
PackingGroup  III
Hazardous Substances Data 119-64-2(Hazardous Substances Data)
Toxicity LD50 orally in rats: 2.86 g/kg (Smyth)
NFPA 704
2
1 0

1,2,3,4-Tetrahydronaphthalene price More Price(24)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 95462 1,2,3,4-Tetrahydronaphthalene analytical standard 119-64-2 5ml $66.1 2024-03-01 Buy
Sigma-Aldrich 8.09733 1,2,3,4-Tetrahydronaphthalene for synthesis 119-64-2 200kg $5160 2024-03-01 Buy
Sigma-Aldrich 456438 1,2,3,4-Tetrahydronaphthalene reagent grade, ≥97% 119-64-2 18L $1020 2024-03-01 Buy
Sigma-Aldrich 429325 1,2,3,4-Tetrahydronaphthalene ReagentPlus , 99% 119-64-2 1l $138 2024-03-01 Buy
Sigma-Aldrich 429325 1,2,3,4-Tetrahydronaphthalene ReagentPlus , 99% 119-64-2 4l $369 2024-03-01 Buy
Product number Packaging Price Buy
95462 5ml $66.1 Buy
8.09733 200kg $5160 Buy
456438 18L $1020 Buy
429325 1l $138 Buy
429325 4l $369 Buy

1,2,3,4-Tetrahydronaphthalene Chemical Properties,Uses,Production

Chemical Properties

colourless liquid with a mouldy smell

Chemical Properties

Tetralin or 1,2,3,4-tetrahydronaphthalene is a flammable liquid.

Uses

As a solvent for fats and oils and as an alternative to turpentine in polishes and paint; insecticide.

Uses

1,2,3,4-Tetrahydronaphthalene, is used as an intermediate for organic synthesis, solvent. It is used as a solvent.It is also used for the laboratory synthesis of dry HBr gas.

Uses

Degreasing agent. Solvent for naphthalene, fats, resins, oils, waxes, used instead of turpentine in lacquers, shoe polishes, floor waxes.

Production Methods

Tetralin is prepared by the catalytic hydrogenation of naphthalene or during acidic, catalytic hydrocracking of phenanthrene. At 700℃, tetralin yields tars that contain appreciable quantities of 3,4-benzopyrene (172a).

Definition

ChEBI: An ortho-fused bicyclic hydrocarbon that is 1,2,3,4-tetrahydro derivative of naphthalene.

Synthesis Reference(s)

Journal of the American Chemical Society, 111, p. 314, 1989 DOI: 10.1021/ja00183a048
Tetrahedron Letters, 12, p. 1853, 1971

General Description

A light colored liquid. May be irritating to skin, eyes and mucous membranes. Flash point 100-141°F.

Air & Water Reactions

Flammable.

Reactivity Profile

1,2,3,4-Tetrahydronaphthalene may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. Oxidizes readily in air to form unstable peroxides that may explode spontaneously [Bretherick 1979 p.151-154].

Hazard

Irritant to eyes and skin; narcotic in high concentration.

Health Hazard

Liquid may cause nervous disturbance, green coloration of urine, and skin and eye irritation

Carcinogenicity

In male and female F344/N and NBR rats exposed to tetralin at concentrations of 0, 30, 60, or 120 ppm, 6 h plus T90 (12 min) per day, 5 days per week for 105 weeks, there were slightly increased incidences of cortical renal tubule adenoma in male rats. The incidence of cortical renal tubule adenomawas also significantly increased in the 120 ppm group. Exposure of male and female B6C3F1 mice to tetralin at concentrations of 0, 30, 60, or 120 ppm, 6 h plus T90 (12 min) per day, 5 days per week for 105 weeks and additional groups of male and female mice to the same concentrations for 12 months led to increased incidence of hemangiosarcoma of the spleen in 120 ppm females (172b).

Purification Methods

Wash tetralin with successive portions of conc H2SO4 until the acid layer is no longer coloured, then wash it with aqueous 10% Na2CO3, and then distilled water. Dry (CaSO4 or Na2SO4), filter, reflux and fractionally distil it under under reduced pressure from sodium or BaO. It can also be purified by repeated fractional freezing. Bass [J Chem Soc 3498 1964] freed tetralin, purified as above, from naphthalene and other impurities by conversion to ammonium tetralin-6-sulfonate. Concentrated H2SO4 (150mL) is added slowly to stirred tetralin (272mL) which is then heated on a water bath for about 2hours for complete solution. The warm mixture, when poured into aqueous NH4Cl solution (120g in 400mL water), gives a white precipitate which, after filtering off, is crystallised from boiling water, washed with 50% aqueous EtOH and dried at 100o. Evaporation of its boiling aqueous solution on a steam bath removes traces of naphthalene. The pure salt (229g) is mixed with conc H2SO4 (266mL) and steam distilled from an oil bath at 165-170o. An ether extract of the distillate is washed with aqueous Na2SO4, and the ether is evaporated, prior to distilling the tetralin from sodium. Tetralin has also been purified via barium tetralin-6-sulfonate, conversion to the sodium salt and decomposed in 60% H2SO4 using superheated steam. [Beilstein 5 H 491, 5 III 1219, 5 IV 1388.]

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Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1,2,3,4-Tetrahydronaphthalene pictures 2024-12-20 1,2,3,4-Tetrahydronaphthalene
119-64-2
 US $6.00 / kg 1kg 99% 2000KG/Month HebeiShuoshengImportandExportco.,Ltd
1,2,3,4-Tetrahydronaphthalene pictures 2024-12-19 1,2,3,4-Tetrahydronaphthalene
119-64-2
 US $6.00 / KG 1KG 99% 20TONS Hebei Longbang Technology Co., Ltd
1,2,3,4-Tetrahydronaphthalene pictures 2024-11-22 1,2,3,4-Tetrahydronaphthalene
119-64-2
 US $1.00 / kg 1kg 99% 10 mt Hebei Weibang Biotechnology Co., Ltd
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