1,2-Butylene Oxide , >99.0%(GC) , 106-88-7

Synonym(s):
1,2-Epoxybutane;1-Butene oxide;Ethyloxirane;Ethyloxirane, 1,2-Butylene oxide;α-Butylene oxide

CAS NO.：106-88-7

Empirical Formula: C4H8O

Molecular Weight: 72.11

MDL number: MFCD00005153

EINECS: 203-438-2

PRODUCT Properties

• Melting point: -129.28°C
• Boiling point: 63 °C(lit.)
• Density: 0.829 g/mL at 20 °C(lit.)
• vapor density: 2.2 (vs air)
• vapor pressure: 140 mm Hg ( 20 °C)
• refractive index: n20/D 1.384
• Flash point: 10 °F
• storage temp.: Store below +30°C.
• solubility: 86.8g/l
• form: Colorless liquid with pungent odor
• color: Colorless to Almost colorless
• PH: 7 (50g/l, H2O, 20℃)
• explosive limit: 1.7-19%(V)
• Water Solubility: 86.8g/L at 25℃
• BRN: 102411
• Stability: Stable, but prone to polymerization - stabilizer may be added to neat liquid. Highly flammable. Incompatible with strong oxidizing agents, acids, bases, anhydrous metal halides, amino, hydroxyl and carboxyl-containing compounds. Inorganic acids and charcoal may lead to polymerization. Heat, light and moisture sensitive.
• InChIKey: RBACIKXCRWGCBB-UHFFFAOYSA-N
• LogP: 0.68 at 25℃

Description and Uses

Butylene oxide is a watery white liquid withan etherial odor. Molecular weight = 72.1 (1,2- and 2,3-isomers);Specific gravity (H2O:1) = 0.83; Boilingpoint = 63.3℃; Freezing/Melting point = - 130℃; Vaporpressure = 142 mmHg at 20℃; 176 mmHg at 25℃;Relative vapor density (air = 1) = 2.2; Relative density ofthe vapor/air mixture at 20C (air = 1) = 1.3; Flashpoint = - 22℃; Autoignition temperature = 439℃.Explosive limits in air: LEL: 1.7%; UEL: 19%. HazardIdentification (based on NFPA-704 M Rating System):Health 2, Flammability 3, Reactivity 2. Soluble in water;solubility = 9.5% at 25℃.

Primarily used as a stabilizer for chlorinated hydrocarbon solvents; also used as a chemical intermediate in the production of butylene glycols

Safety

• Symbol(GHS): GHS02,GHS07,GHS08
• Signal word: Danger
• Hazard statements: H225-H302+H312+H332-H315-H319-H335-H351
• Precautionary statements: P210-P280-P301+P312-P303+P361+P353-P304+P340+P312-P308+P313
• Hazard Codes: F,Xn
• Risk Statements: 11-20/21/22-36/37/38-40-52/53
• Safety Statements: 9-16-29-36/37-61-19
• RIDADR: UN 3022 3/PG 2
• WGK Germany: 2
• RTECS: EK3675000
• Autoignition Temperature: 698 °F
• TSCA: Yes
• HazardClass: 3.1
• PackingGroup: II
• HS Code: 29109000
• Toxicity: LD50 orally in Rabbit: 500 mg/kg LD50 dermal Rabbit 1743 mg/kg