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1-Butanol (1-Butanol)

Reference Price: ￥7300 YUAN/Ton 12-23 08:48 Update

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1-Butanol

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butan alcohol
n-C4H9OH
Butanol-1
n-Butul alcohol
1-butyl alcohol
n-butyl alcohol
1-Butanol

+Expand -Stow

71-36-3

C4H10O

74.122

2905130000

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Product Description

危化品许可证.jpg

Nature Description

Colorless transparent liquid. Melting Point-90.2 ℃, boiling point 117.7 ℃, relative density 0.8098(20/4℃), refractive index 1.3993, flash point 35-35.5 ℃, autoignition point 365 ℃. The solubility in water at 20℃ is 7.7 (mass), and the solubility of water in n-butyl alcohol is 20.1 (mass). Miscible with ethanol, ether and other organic solvents. Vapor and air form an explosive mixture with an explosion limit of 1.45-11.25 (volume). It can form an azeotropic mixture with water, whose boiling point is 92℃ and water content is 37. It has a special flavor like wine.

0.81

117.6oC

-89oC

35oC

80G/L(20oC)

1.398-1.4

80G/L(20oC)

Product Applications

It is used to produce butyl acetate, dibutyl phthalate and phosphate plasticizer, and also used to produce melamine resin, acrylic acid, epoxy varnish, etc. It is used as chromatographic analysis reagent and organic synthesis, etc. Butyl alcohol is herbicide 2,4-drop butyl ester, butachlor, pyrifos grass grass spirit (stable killing)..

Production method

There are three main industry make of n-butyl alcohol: fermentation, propylene carbonyl synthesis and acetaldehyde aldehyde condensation.

I. Fermentation Taking grain (wheat, corn, etc.) starch as raw material, adding water to prepare mash, inoculating acetone-butanol bacteria after cooking and sterilization, and fermenting at 36 ~ 37℃. The fermentation mash is separated by distillation to obtain butyl alcohol, acetone and ethanol, with butyl alcohol accounting for 55% ~ 58%, acetone accounting for 30Z ~ 34%, and ethanol accounting for 7% ~ 14%. Molasses or potato starch can also be used as raw materials.

II. Carbonyl synthesis That is to say, REPPE method uses propylene, carbon monoxide and water as raw materials to catalyze direct synthesis of butyl alcohol in one step. When the reaction temperature is 100 ~ 104℃ and the pressure is I .47MPa, the anion complex formed by n-butyl pyrrolidine, pentacarbonyl iron and water is used as the catalyst component, and butyl alcohol is used as the solvent, the one-way conversion rate is 8%~ 10%, and the yield of n-butyl alcohol is 87%. This method is easy to obtain raw materials and simple process, but the one-way conversion rate is not high, which requires high concentration of carbon monoxide in raw materials.

III. Aldol condensation method First, acetaldehyde is added to 10% dilute alkali solution, and the reaction is 0.5~2H below 120℃ to generate 2-hydroxybutyraldehyde. When the reaction reaches 50%, the alkali will be neutralized. Unreacted acetaldehyde will be recovered by distillation, and 2-hydroxybutyraldehyde will be obtained from the bottom of the distillation column. Then use sulfuric acid or acetic acid to dehydrate to obtain crotonaldehyde. Then, Ni-Cr was used as catalyst. Under the conditions of 180℃ and 0.29MPa, crotonaldehyde was hydroreduced to butyl alcohol, and the reaction mixture was fractionated to obtain the product. This method has long process route and serious equipment corrosion, which is currently adopted by only a few manufacturers. IV. Preparation by acetone-butyl alcohol fermentation. It is obtained by the hydrogenation of butyraldehyde by Oxo reaction. It is formed by acetaldehyde condensation to crotonaldehyde and then hydrogenation.

Security

Dangerous Goods Marking： F

Safety instructions： S13: keep away from food, beverage and animal feed. S26: in case of contact with eyes, rinse with plenty of water immediately and send it to the doctor for diagnosis and treatment. S46: in case of accidental swallowing, seek doctor's advice immediately (display product container or label). S37/39: use suitable gloves and goggles or mask.

Hazardous material category code： R10: flammable. R22: swallowing is harmful. R41: risk of serious eye damage. R67: Steam may cause drowsiness and fainting. R37/38: it can stimulate respiratory tract and skin.

Dangerous goods transportation number： UN1120

Symbols： GHS02,GHS05,GHS07

Storage conditions： The warehouse is ventilated cryodrying and stored separately from oxidant, chromium trioxide and aluminum.

Cautionary Statement： P210;P280;P301+P312+P330;P304+P340+P312;P305+P351+P338+P310;P403+P235

Packaging grade： III

Signal word： Danger

Hazard Statement： H226;H302;H315;H318;H335;H336