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Styrene oxide

CAS No.
96-09-3
Chemical Name:
Styrene oxide
Synonyms
2-PHENYLOXIRANE;PHENYLETHYLENE OXIDE;PHENYLOXIRANE;STO;EPOXYSTYRENE;Styrene-7,8-oxide;(Epoxyethyl)benzene;1,2-EPOXYETHYLBENZENE;ep-182;NSC 637
CBNumber:
CB4489359
Molecular Formula:
C8H8O
Molecular Weight:
120.15
MDL Number:
MFCD00005121
MOL File:
96-09-3.mol
MSDS File:
SDS
Last updated:2023-04-23 13:52:06

Styrene oxide Properties

Melting point -37 °C (lit.)
Boiling point 194 °C (lit.)
Density 1.054 g/mL at 25 °C (lit.)
vapor density 4.14 (vs air)
vapor pressure <1 mm Hg ( 20 °C)
refractive index n20/D 1.535(lit.)
Flash point 175 °F
storage temp. Store below +30°C.
solubility 3g/l
form Liquid
color Clear colorless to slightly yellow
explosive limit 1.1-22%(V)
Water Solubility 3 g/L (20 ºC)
BRN 108582
Stability Stability Unstable - polymerises readily with compounds possessing a labile hydrogen (such as acids and alcohols) in the presence of acids, bases or some salts. Combustible. Incompatible with strong oxidizing agents, acids, bases. Moisture sensitive.
LogP 1.61
Indirect Additives used in Food Contact Substances STYRENE OXIDE
CAS DataBase Reference 96-09-3(CAS DataBase Reference)
EWG's Food Scores 5
FDA UNII 9QH06NGT6O
Proposition 65 List Styrene Oxide
IARC 2A (Vol. Sup 7, 60, 121) 2019
NIST Chemistry Reference Oxirane, phenyl-(96-09-3)
EPA Substance Registry System Styrene oxide (96-09-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS06,GHS08
Signal word  Danger
Hazard statements  H312-H315-H317-H319-H331-H340-H350
Precautionary statements  P201-P280-P302+P352+P312-P304+P340+P311-P305+P351+P338-P308+P313
Hazard Codes  T
Risk Statements  45-21-36-43-36/38-20/21-46
Safety Statements  53-45-36/37-26
RIDADR  UN 2810 6.1/PG 3
WGK Germany  3
RTECS  CZ9625000
Autoignition Temperature 928 °F
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29109000
NFPA 704
2
1 0

Styrene oxide price More Price(21)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich S5006 Styrene oxide 97% 96-09-3 5G $52.2 2024-03-01 Buy
Sigma-Aldrich S5006 Styrene oxide 97% 96-09-3 100g $58.6 2024-03-01 Buy
Sigma-Aldrich S5006 Styrene oxide 97% 96-09-3 1KG $93.4 2024-03-01 Buy
Sigma-Aldrich S5006 Styrene oxide 97% 96-09-3 500g $111 2024-03-01 Buy
Sigma-Aldrich 8.03202 Epoxystyrene for synthesis 96-09-3 25mL $31.4 2024-03-01 Buy
Product number Packaging Price Buy
S5006 5G $52.2 Buy
S5006 100g $58.6 Buy
S5006 1KG $93.4 Buy
S5006 500g $111 Buy
8.03202 25mL $31.4 Buy

Styrene oxide Chemical Properties,Uses,Production

Chemical Properties

colourless to light yellow liquid

Chemical Properties

Styrene oxide is a colorless to pale strawcolored liquid. Pleasant, sweet odor.

Uses

Used as an intermediate in the production of styrene glycol and its derivatives; as a reactive dilutent in the epoxy resin industry; as a chemical intermediate for making bphenethyl alcohol, a fragrance material.

Uses

Styrene oxide is is an important intermediate for organic synthesis and is widely used in organic synthesis, pharmaceutical preparation, and perfume production. For example, styrene oxide is added to hydrogen to produce monophenylethanol under the action of a catalyst.
Styrene oxide has a wide range of uses, and can be used in floral fragrances for daily use, as well as in food. Styrene oxide is also an important intermediate for the synthesis of levamisole hydrochloride. L-imidazole hydrochloride is a broad-spectrum intestinal repellent that can be used by humans and animals.

Uses

A major (toxic) metabolite of Styrene (S687790), catalyzed by epoxide hydrolase.

Definition

ChEBI: An epoxide of styrene.

Synthesis Reference(s)

Journal of the American Chemical Society, 106, p. 6668, 1984 DOI: 10.1021/ja00334a035
Tetrahedron Letters, 21, p. 4449, 1980 DOI: 10.1016/S0040-4039(00)92196-8

General Description

Clear colorless straw-colored liquid with a sweet pleasant odor.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Styrene oxide is incompatible with oxidizing agents. Also incompatible with acids and bases. Reacts with 4-(4'-nitrobenzyl)pyridine. Polymerizes exothermally and reacts vigorously with compounds possessing a labile hydrogen (e.g. alcohols and amines) in the presence of catalysts such as acids, bases and certain salts .

Hazard

Toxic by ingestion and inhalation. Possible carcinogen.

Health Hazard

Styrene oxide is a mild to moderate skin irri-tant. Irritation from 500 mg was moderateon rabbit skin. The toxicity of this com-pound was low on test animals. Inhalationof 500 ppm in 4 hours was lethal to rats. Anin vivo and in vitro study in mice (Helmanet al. 1986) indicates acute dermal toxicity,causing sublethal cell injury.
LD50 value, oral (mice): 1500 mg/kg
Styrene oxide, however, may present aconsiderable health hazard as a mutagen,teratogen, and carcinogen. The reproduc-tive effects from inhalation observed in ratswere fetotoxicity, developmental abnormal-ities, and effects on fertility (Sikov et al.1986). There is sufficient evidence of its car-cinogenicity in animals, producing liver, gas-trointestinal tract, and skin tumors. Gavageexposure caused cancer in the forestomach ofboth sexes of rats and mice (McConnell andSwenberg 1994). Its cancer-causing effectson humans are unknown.
No exposure limit has been set for thiscompound. Its toxic and irritant effects inhumans are quite low.

Fire Hazard

Styrene oxide is combustible.

Flammability and Explosibility

Non flammable

Potential Exposure

Styrene oxide is used as a reactive intermediate, especially to produce styrene glycol and its derivatives. Substantial amounts are also used in the epoxy resin industry as a diluent. It may also have applications in the preparation of agricultural and biological chemicals, cosmetics, and surface coatings and in the treatment of textiles and fibers. Styrene oxide is made in quantities in excess of a million pounds per year, and further, is a presumed metabolite of styrene which is produced in much greater quantities.

Carcinogenicity

Styrene-7,8-oxide is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.

Shipping

UN2810 Toxic liquids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

Purification Methods

Fractional distillation under reduced pressure does not remove phenylacetaldehyde. If this material is present, the styrene oxide is treated with hydrogen under 3 atmospheres pressure in the presence of platinum oxide. The aldehyde, but not the oxide, is reduced to .-phenylethanol, and separation is now readily achieved by fractional distillation. [Schenck & Kaizermen J Am Chem Soc 75 1636 1953, Beilstein 17/1 V 577.]

Incompatibilities

Vapors may form explosive mixture with air. May polymerize on heating above 200C, under the influence of strong acids, strong bases; oxidizers, metal salts; such as aluminum chloride; catalysts for vinyl polymers. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.

Waste Disposal

Styrene oxide is burned in a chemical incin-erator equipped with an afterburner andscrubber.

100-52-7
77-78-1
96-09-3
Synthesis of Styrene oxide from Benzaldehyde and Dimethyl sulfate
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View Lastest Price from Styrene oxide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Styrene Oxide pictures 2021-10-11 Styrene Oxide
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US $10.00 / KG 1KG 99% 20 tons Hebei Zhanyao Biotechnology Co. Ltd
Styrene oxide pictures 2019-12-20 Styrene oxide
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US $1.00 / KG 100g 98% 200KG Career Henan Chemical Co
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NSD1 human nuclear receptor binding SET domain protein 1 Styrene Oxide 〔1,2-Epoxyethylbenzene〕 (n)-epoxystyrene (n)-styrene oxide 7,8-STYRENEOXIDE 1-Phenyl-1,2-epoxyethane styrene oxide (epoxyethyl)benzene phenyloxirane 1,2-Epoxyethylbenzene, Phenylethylene oxide, Phenyloxirane Oxiranylbenzene (epoxyethyl)-benzen (R,S)-2-Phenyl-oxirane 1,2-Epoxy-1-phenylethane 1-Phenyloxirane alpha,beta-Epoxystyrene Benzene, (epoxyethyl)- benzene,(1,2-epoxyethyl) ep-182 epoxyethylbenzene Ethane, 1,2-epoxy-1-phenyl- Fenyloxiran NCI-C54977 oxirane,phenyl- Phenylepoxyethane rac Styrene Oxide Styrene oxide, 98% 1LT Styrene oxide, 98% 250ML NSC 637 NSC 7582 EPOXYSTYRENE FOR SYNTHESIS Styrene oxide 97% (n)-2-phenyloxirane STYRENE OXIDE 97+% StyreneOxide,~99% (±)-Styreneoxide,98+% StyreneOxide(1,2-Epoxyethylbenzene,Phenyloxirane phenyl-oxiran Phenyloxirane(undefinedopticalisomer) Styryl oxide styryloxide PHENETHYLENE OXIDE STYRENE EPOXIDE (+/-)-STYRENE OXIDE STYRENE OXIDE Styrene oxide, 97.5% (Epoxyethyl)benzene/styrene oxide StyreneOxide> EPOXYSTYRENE FOR SYNTHESIS 250 ML Oxirane, 2-phenyl- Styrene-7,8-oxide (Epoxyethyl)benzene 1,2-EPOXYETHYLBENZENE 2-PHENYLOXIRANE EPOXYSTYRENE PHENYLOXIRANE PHENYLETHYLENE OXIDE STO 96-09-3