n-Butane manufacturers and suppliers

n-Butane suppliers

Properties

Melting point:: −138 °C(lit.)

Boiling point:: −0.5 °C(lit.)

Density: 0.579 g/mL at 20 °C(lit.)

vapor density: 2.11 (vs air)

vapor pressure: 3.21, 1.26, and 0.66 mM at 4, 25, and 50 °C, respectively (Kresheck et al., 1965)

refractive index: 1.3326

Flash point:: 45

form: gas

Odor: faint disagreeable odor

Odor Threshold: 1200ppm

Water Solubility: 73.24mg/L(25 ºC)

Merck: 1515

BRN: 969129

Henry's Law Constant: (atm?m³/mol): 0.356 at 5 °C, 0.454 at 10 °C, 0.568 at 15 °C, 0.695 at 20 °C, 0.835 at 25 °C (Ben-Naim et al., 1973)

Dielectric constant: 1.4（-1℃）

Exposure limits: TLV-TWA 800 ppm (～1920 mg/m³) (ACGIH), 500 ppm (1200 mg/m³) (MSHA).

Stability:: Stable. Extremely flammable. Readily forms explosive mixtures with air. Note low flash point. Incompatible with strong oxidizing agents, strong acids, strong alkalies.

LogP: 2.890

Safety Information

Symbol(GHS): GHS02,GHS04

Signal word: Danger

Hazard statements: H220-H280

Precautionary statements: P410+P403

Hazard Codes: F+,F,T

Risk Statements: 12-46-45

Safety Statements: 9-16-45-53

RIDADR: UN 2037 2.1

WGK Germany: -

RTECS: EJ4200000

F: 4.5-31

Hazard Note: Extremely Flammable

DOT Classification: 2.1 (Flammable gas)

HazardClass: 2.1

HS Code: 2901100000

Toxicity: LC₅₀ (inhalation) for mice 680 gm/m³/2-h, rats 658 gm/m³/4-h (quoted, RTECS, 1985).

IDLA: 1,600 ppm (>10% LEL)

Use

n-Butane can be obtained from natural gas and from refinery hydro cracker streams. Most of the n-butane goes into fuel additive uses. The major chemical use is as a feedstock for ethylene production by cracking . The other important chemical uses for butane are in oxidation to acetic acid and in the production of maleic anhydride. In the past, butane also was the main feedstock for the production of butadiene by dehydrogenation, but it has been replaced by coproduct butadiene obtained from ethylene production. Ethylene. The largest potential chemical market for n-butane is in steam cracking to ethylene and coproducts. n-Butane is a supplemental feedstock for olefin plants and has accounted for 1-4 percent of total ethylene production for most years since 1970. It can be used at up to 10-15 percent ofthe total feed in ethane/propane crackers with no major modifications . n-Butane can also be used as a supplemental feed at as high as 20-30 percent in heavy naphtha crackers. The consumption of C4S has fluctuated considerably from year to year since 1970, depending on the relative price ofbutane and other feedstocks. The yield of ethylene is only 36-40 percent, with the other products including methane, propylene, ethane, and butadiene, acetylene, and butylenes. About 2-3 billion Ib of butane are consumed annually to produce ethylene.

You can find n-Butane suppliers, manufacturers, and distributors from countries such as China, United States and the United Kingdom here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.