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1,2,3,4-Tetrahydronaphthalene

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Products Intro: Product Name:1,2,3,4-Tetrahydronaphthalene
CAS:119-64-2
Purity:99% Package:40/KG
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Products Intro: Product Name:1,2,3,4-Tetrahydronaphthalene
CAS:119-64-2
Purity:99% Package:100g,500g,1KG,10KG,100KG
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CAS:119-64-2
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Products Intro: Product Name:1,2,3,4-Tetrahydronaphthalene
CAS:119-64-2

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1,2,3,4-Tetrahydronaphthalene Basic information
Product Name:1,2,3,4-Tetrahydronaphthalene
Synonyms:Benzocyclohexane;delta(sup5,7,9)-naphthantriene;delta5,7,9-naphthantriene;Naphthalene, 1,2,3,4-tetrahydro-;Naphthalene,1,2,3,4-tetrahydro-;Naphthalene-1,2,3,4-tetrahydride;naphthalene1,2,3,4-tetrahydride;tetralene
CAS:119-64-2
MF:C10H12
MW:132.2
EINECS:204-340-2
Product Categories:Anhydrous Solvents;Solvent Bottles;Solvent by Application;Solvent Packaging Options;Solvents;Sure/Seal Bottles;Analytical Chemistry;Solvents for HPLC & Spectrophotometry;Solvents for Spectrophotometry;ACS and Reagent Grade Solvents;Amber Glass Bottles;ReagentPlus;ReagentPlus Solvent Grade Products
Mol File:119-64-2.mol
1,2,3,4-Tetrahydronaphthalene Structure
1,2,3,4-Tetrahydronaphthalene Chemical 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.)
Fp 171 °F
storage temp. Store below +30°C.
solubility 0.045g/l
form Fluid
explosive limit0.8%, 100°F
Water Solubility INSOLUBLE
Sensitive Air Sensitive
Merck 14,9221
BRN 1446407
Stability:Stable. Combustible. Incompatible with strong oxidizing agents.
CAS DataBase Reference119-64-2(CAS DataBase Reference)
NIST Chemistry ReferenceTetralin(119-64-2)
EPA Substance Registry SystemNaphthalene, 1,2,3,4-tetrahydro-(119-64-2)
Safety Information
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 Temperature723 °F
TSCA Yes
HS Code 2902 90 00
HazardClass 9
PackingGroup III
Hazardous Substances Data119-64-2(Hazardous Substances Data)
ToxicityLD50 orally in rats: 2.86 g/kg (Smyth)
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
1,2,3,4-Tetrahydronaphthalene Usage And Synthesis
Chemical Propertiescolourless liquid with a mouldy smell
DefinitionChEBI: An ortho-fused bicyclic hydrocarbon that is 1,2,3,4-tetrahydro derivative of naphthalene.
UsesDegreasing agent. Solvent for naphthalene, fats, resins, oils, waxes, used instead of turpentine in lacquers, shoe polishes, floor waxes.
General DescriptionA light colored liquid. May be irritating to skin, eyes and mucous membranes. Flash point 100-141°F.
Air & Water ReactionsFlammable.
Reactivity Profile1,2,3,4-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].
HazardIrritant to eyes and skin; narcotic in high concentration.
Health HazardLiquid may cause nervous disturbance, green coloration of urine, and skin and eye irritation
Purification MethodsWash 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.]
Tag:1,2,3,4-Tetrahydronaphthalene(119-64-2) Related Product Information
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