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제 목:
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Toluene |
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상품분류: |
유기화학원료와 중간체
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CAS NO: CAS:108-88-3
Payment: L/C at 60days after sight
Additional_detail: Feature: colorless, transparent
liquid, irritating smell, the
relative density (20 ℃ / 4 ℃)
0.866. Freezing point -95 ℃, the
boiling point 110.8 ℃, a flash
point Cup 13 ℃ closed cup 4.4
℃, burning 552 ℃, refractive
index of 1.4961, viscosity (20
℃) 0.5866 mPa s, surface
tension (20 ℃) 28,53 10-3N /
m, solubility parameter δ = 8.9.
With ethanol, ethyl ether,
benzene, acetone, carbon
disulfide, solvent gasoline
immiscibility. Do not dissolve in
water. And the accumulation of
static electricity is generated
the risk. Flammable, explosive
vapour and air mixture formation,
the explosion limits 1. 27% -7.0%
(vol). Toxic. Irritation to the
skin and mucous membranes, the
role of the nervous system
stronger than benzene. Long-term
exposure has caused bladder
cancer may Ang. But toluene can
be oxidized to acid, glycine and
uric acid-generating, in the
discharge from the urine, so
there is no blood poisoning. The
maximum admissible concentration
in the air for 100 mg/m3 (or 0.02
per cent).
Use: (toluene excellent
solubility, adhesive is the most
widely used solvent, thinner can
also be used as epoxy resin. Used
in the manufacture of saccharin,
dyes, drugs and explosives, and
as a solvent.) For a large number
of toluene Solvent and gasoline
additive high octane number, is
also an important organic
chemical raw materials, but also
from coal and oil by the benzene
and xylene compared to the
current relative surplus of
production, so for a considerable
amount of toluene from alkyl Toki
of the system of benzene or
xylene. Toluene derived from a
series of intermediates, widely
used in dyes, medicines,
pesticides, Explosive, additives,
spices, and other fine chemicals
production, but also for
synthetic materials industries.
Toluene to be a side-chain
chlorinated benzyl chloride,
dichloro-benzyl and triclosan
benzyl, including their
derivatives of benzene methanol,
formaldehyde and benzene benzoyl
chloride (General also received
from the acid-gasification),
Medicine, pesticides, dyes, in
particular the extensive
application of spices. Toluene is
the product of the Central
chlorinated pesticides,
pharmaceuticals, dyes
intermediates. Toluene by acid
oxidation, is an important food
preservative (mainly the use of
its sodium salt), also used for
organic synthesis of
intermediates. Toluene and
benzene derivatives, as in the
intermediate sulfonated system,
including a acid and sodium, CLT
acid, toluene -2,4 - acid,
benzaldehyde -2,4 - Acid , P-
toluenesulfonyl chloride, used
for detergent additives, chemical
fertilizers anti-caking
additives, organic pigments,
medicine, dye production. Toluene
nitrification system in a large
number of intermediates. Can be
derived from many of the final
product, which in polyurethane
products, dyes and organic
pigments, rubber chemicals,
medicines, explosives, and other
aspects of the most important.
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