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78-79-5 C5H8 Isoprene CAS NO.78-79-5

Min.Order Quantity:: 100 Gram

Purity:: 98%

Port:: Tianjin Shanghai

Payment Terms:: L/C,D/A,D/P,T/T,MoneyGram,Other

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Product Details

Keywords

78-79-5 C5H8 Isoprene
78-79-5
C5H8

Quick Details

ProName: 78-79-5 C5H8 ...
CasNo: 78-79-5
Molecular Formula: C5H8
Appearance: white powder
Application: Acyclic;Alkenes;Building Blocks;Chemic...
DeliveryTime: 5-7 days after payment
PackAge: Woven bag
Port: Tianjin Shanghai
ProductionCapacity: 1 Kilogram/Day
Purity: 98%
Storage: Normal temperature
Transportation: Ocean shipping Express delivery
LimitNum: 100 Gram

Superiority

isoprene basic information

product name:	isoprene
synonyms:	1,3-butadiene,2-methyl-;2-methyl-3-butadiene;2-methylbutadiene;2-methyldivinyl;2-methylethene;3-butadiene,2-methyl-1;3-methyl-1,3-butadiene;beta-methylbivinyl
cas:	78-79-5
mf:	c5h8
mw:	68.12
einecs:	201-143-3
product categories:	acyclic;alkenes;building blocks;chemical synthesis;humulus lupulus (hops);nutrition research;organic building blocks;phytochemicals by plant (food/spice/herb)
mol file:	78-79-5.mol

isoprene chemical properties

melting point	323-329 °c(lit.)
boiling point	34 °c(lit.)
density	0.681 g/ml at 25 °c(lit.)
vapor density	2.35 (vs air)
vapor pressure	8.82 psi ( 20 °c)
refractive index	n20/d 1.422(lit.)
fp	−65 °f
storage temp.	2-8°c
form	solid
water solubility	0.07 g/100 ml
freezingpoint	-145.96℃
merck	14,5201
brn	969158
stability:	stability extremely flammable. readily forms explosive mixtures with air. note low flash point, low boiling point, high vapour pressure. unstable - prone to spontaneous polymerization. may contain a polymerization inhibitor. incompatible with strong oxidizing agents.
cas database reference	78-79-5(cas database reference)
nist chemistry reference	1,3-butadiene, 2-methyl-(78-79-5)
epa substance registry system	1,3-butadiene, 2-methyl-(78-79-5)

safety information

hazard codes	f+,t,n
risk statements	45-12-52/53-68-51/53
safety statements	53-45-61-36/37-16
ridadr	un 1218 3/pg 1
wgk germany	1
rtecs	nt4037000
hazardclass	3
packinggroup	i
hazardous substances data	78-79-5(hazardous substances data)

msds information

provider	language
sigmaaldrich	english
acros	english
alfa	english

isoprene usage and synthesis

chemical properties	colourless liquid with an aromatic odour
usage	isoprene is used in the synthesis of rubber through a polymer synthetic route.
definition	chebi: a hemiterpene with the formula ch22c(ch3)ch2ch2; the monomer of natural rubber and a common structure motif to the isoprenoids, a large class of other naturally occurr ng compounds.
general description	a clear colorless liquid with a petroleum-like odor. density 5.7 lb / gal. flash point -65°f. boiling point 93°f. may polymerize exothermically if heated or contaminated. if polymerization takes place inside a closed container, the container may rupture violently. less dense than water and insoluble in water. vapors heavier than air.
air & water reactions	highly flammable. insoluble in water.
reactivity profile	isoprene may react vigorously with strong oxidizing agents. may react exothemically with reducing agents to release hydrogen gas. may undergo exothermic addition polymerization in the presence of various catalysts (such as acids) or initiators. undergoes autoxidation upon exposure to the air to form explosive peroxides. mixing isoprene in equal molar portions with any of the following substances in a closed container caused the temperature and pressure to increase: chlorosulfonic acid, nitric acid (70%), oleum, sulfuric acid (90%) [nfpa 1991].
health hazard	vapor produces no effects other than slight irritation of the eyes and upper respiratory tract. liquid may irritate eyes; like gasoline.

isoprene preparation products and raw materials

preparation products	cyclopentene-->terpineol-->3-methyl-2-buten-1-ol-->2-methyl-2-butene-->1-chloro-3-methyl-2-butene -->2,2-dimethylcyclopentanone-->6-methyl-5-hepten-2-one-->exxon butyl rubber 065-->methylionone-->3-methyl-2,5-dihydrothiophene-1,1-dioxide
raw materials	3-methyl-1-butene-->2-methylbutane-->c5 fraction

Details

isoprene basic information

product name:	isoprene
synonyms:	1,3-butadiene,2-methyl-;2-methyl-3-butadiene;2-methylbutadiene;2-methyldivinyl;2-methylethene;3-butadiene,2-methyl-1;3-methyl-1,3-butadiene;beta-methylbivinyl
cas:	78-79-5
mf:	c5h8
mw:	68.12
einecs:	201-143-3
product categories:	acyclic;alkenes;building blocks;chemical synthesis;humulus lupulus (hops);nutrition research;organic building blocks;phytochemicals by plant (food/spice/herb)
mol file:	78-79-5.mol

isoprene chemical properties

melting point	323-329 °c(lit.)
boiling point	34 °c(lit.)
density	0.681 g/ml at 25 °c(lit.)
vapor density	2.35 (vs air)
vapor pressure	8.82 psi ( 20 °c)
refractive index	n20/d 1.422(lit.)
fp	−65 °f
storage temp.	2-8°c
form	solid
water solubility	0.07 g/100 ml
freezingpoint	-145.96℃
merck	14,5201
brn	969158
stability:	stability extremely flammable. readily forms explosive mixtures with air. note low flash point, low boiling point, high vapour pressure. unstable - prone to spontaneous polymerization. may contain a polymerization inhibitor. incompatible with strong oxidizing agents.
cas database reference	78-79-5(cas database reference)
nist chemistry reference	1,3-butadiene, 2-methyl-(78-79-5)
epa substance registry system	1,3-butadiene, 2-methyl-(78-79-5)

safety information

hazard codes	f+,t,n
risk statements	45-12-52/53-68-51/53
safety statements	53-45-61-36/37-16
ridadr	un 1218 3/pg 1
wgk germany	1
rtecs	nt4037000
hazardclass	3
packinggroup	i
hazardous substances data	78-79-5(hazardous substances data)

msds information

provider	language
sigmaaldrich	english
acros	english
alfa	english

isoprene usage and synthesis

chemical properties	colourless liquid with an aromatic odour
usage	isoprene is used in the synthesis of rubber through a polymer synthetic route.
definition	chebi: a hemiterpene with the formula ch22c(ch3)ch2ch2; the monomer of natural rubber and a common structure motif to the isoprenoids, a large class of other naturally occurr ng compounds.
general description	a clear colorless liquid with a petroleum-like odor. density 5.7 lb / gal. flash point -65°f. boiling point 93°f. may polymerize exothermically if heated or contaminated. if polymerization takes place inside a closed container, the container may rupture violently. less dense than water and insoluble in water. vapors heavier than air.
air & water reactions	highly flammable. insoluble in water.
reactivity profile	isoprene may react vigorously with strong oxidizing agents. may react exothemically with reducing agents to release hydrogen gas. may undergo exothermic addition polymerization in the presence of various catalysts (such as acids) or initiators. undergoes autoxidation upon exposure to the air to form explosive peroxides. mixing isoprene in equal molar portions with any of the following substances in a closed container caused the temperature and pressure to increase: chlorosulfonic acid, nitric acid (70%), oleum, sulfuric acid (90%) [nfpa 1991].
health hazard	vapor produces no effects other than slight irritation of the eyes and upper respiratory tract. liquid may irritate eyes; like gasoline.

isoprene preparation products and raw materials

preparation products	cyclopentene-->terpineol-->3-methyl-2-buten-1-ol-->2-methyl-2-butene-->1-chloro-3-methyl-2-butene -->2,2-dimethylcyclopentanone-->6-methyl-5-hepten-2-one-->exxon butyl rubber 065-->methylionone-->3-methyl-2,5-dihydrothiophene-1,1-dioxide
raw materials	3-methyl-1-butene-->2-methylbutane-->c5 fraction

hennan sunlake enterprise corporation is located in henan province , the central plain of china , which enjoys favorable geogeaphical position and convenient transportion, the com[any was established in june. 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material .

sunlake is a professional manufacturer engaged in producing and selling chemicals,including organic & inorganic chemicals , pigments & dyestuffs , water treatment chemicals , food & feed additives and others . these products have been being well exported to europe , southeast asia , the middle east , africa , south america and some other countries and areas.

we sincerely welcome foreign friends to visit our plant for cooperation. with the idea of "quality first,credit priority, excellent service", we are highly acknowledged by customers for good quality and competitive price. more importantly , the company has a strong r & d team, who are professional engineers and scholars with ph. d. .so we are confident to serve you better with our high - quality products and professional team.

we are taking great efforts to provide our customers with demanded goods and professional services, and continuously improve our core ability of competition and get the momentum for sustainable development, and finally make us being a reliable and professional wupplier in international market.

we welcome any serious inquiries from all customers of the world, and sincerely hope to cooperate with you for a brilliant future!

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