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Overview Production Applications Warning and Risk References
Chemical Name:
A-17;r600;Q GAS;Bu-Gas;Butani;BUTANE;Batane;HC 600;Butanen;n-C4H10
Molecular Formula:
Formula Weight:
MOL File:

N-BUTANE Properties

Melting point:
−138 °C(lit.)
Boiling point:
−0.5 °C(lit.)
0.579 g/mL at 20 °C(lit.)
vapor density 
2.11 (vs air)
refractive index 
Flash point:
Stable. Extremely flammable. Readily forms explosive mixtures with air. Note low flash point. Incompatible with strong oxidizing agents, strong acids, strong alkalies.
CAS DataBase Reference
106-97-8(CAS DataBase Reference)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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
Hazard Note  Extremely Flammable
HazardClass  2.1
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H220 Extremely flammable gas Flammable gases Category 1 Danger P210, P377, P381, P403
H280 Contains gas under pressure; may explode if heated Gases under pressure Compressed gas
Liquefied gas
Dissolved gas
Warning P410+P403
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P403 Store in a well-ventilated place.
P410 Protect from sunlight.

N-BUTANE price More Price(1)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 494402 Butane 99% 106-97-8 170g $259 2018-11-20 Buy

N-BUTANE Chemical Properties,Uses,Production


N-Butane [C4H10] is a colorless gas with a faint petroleum-like odor. The main sources of butane are the refinery of crude oil and the processing of natural gas. It is commonly blended into motor vehicle gasoline to increase the fuel’s volatility and to make engine starting easier. Butane contains mixtures of methane, ethane, propane, isobutane, and n-butane and is a colourless aliphatic hydrocarbon gas with a gasoline-like odour. Butane is a component of liquefied petroleum gas (LPG) and as such is used in a wide variety of fuel applications for both recreational and leisure use, including heating and air conditioning, refrigeration, cooking, and lighters. Butane is commonly used alone or in mixtures as a propellant in aerosol consumer products, such as hairsprays, deodorants and antiperspirants, shaving creams, edible oil and dairy products, cleaners, pesticides, and coatings (e.g. automobile or household spray paint). Butane is used as a chemical intermediate in the production of maleic anhydride, ethylene, methyl tert-butyl ether (MTBE), synthetic rubber, and acetic acid and its by-products. Butane is a simple asphyxiant with explosive and flammable potential. It is also a widely used substance of abuse. The main target organs are in the CNS and cardiovascular system. Improper use and handling cause poisoning. Exposure to high levels of butane vapors can result in asphyxia. The symptoms of butane poisoning include but not limited to, rapid breathing and pulse rate, headache, dizziness, visual disturbances, mental confusion, incoordination, mood changes, muscular weakness, tremors, cyanosis, narcosis and numbness of the extremities, and unconsciousness leading to central nervous system injury.

Figure 1 Chemical structure of n-butane.


Butane is extremely abundant in many parts of the world, being relatively inexpensive to produce and mine. It is a fossil fuel, which has been created over the course of millions of years by a complex process deep inside the earth from the remains of plants, animals, and numerous microorganisms[4]. Different types of machinery that require butane to operate seemed quite magical when they were developed long ago, but there really is little magic involved in butane production. Its production demands human ingenuity, hard work, repeatable production processes, and following safety procedures every step of the way[4]. General its production includes the following steps: removal of oil and condensate; remove the water; glycol dehydration.


n-Butane can be used in the production of ethylene and 1,3-butadiene. It can also be used as a chemical feedstock for special chemicals in the solvent, rubber, and plastics industries, in the blending of gasoline or motor fuel, as a constituent in liquefied petroleum gas [LPG], and as an extraction solvent in deasphalting processes[5, 6].
N-Butane can be used for the manufacture of ethylene and butadiene, a key ingredient of synthetic rubber[7]. N-butane [R600] is a kind of ozone depletion neutral refrigerant, being a potential refrigerant for household appliances. N-butane has a slightly higher Ranking COP level compared to isobutane and a much higher COP than R134a of which the latter is still used in household appliances around the world[8].

Warning and Risk

Inhaling of butane can cause various central nerve system effects including drowsiness, narcosis, asphyxia, headache, cardiac arrhythmia and frostbite, which can result in instant death from Asphyxiation, Acute toxicity and ventricular fibrillation. Skin and eyes contact may cause burn or frostbite[9, 10]. Butane is the most commonly misused volatile solvent in the UK, and was the cause of 52% of solvent related deaths in 2000[9].



Chemical Properties

colourless gas


As producer gas; raw material for motor fuels, in the manufacture of synthetic rubbers.

General Description

N-BUTANE is a colorless gas with a faint petroleum-like odor. For transportation N-BUTANE may be stenched. N-BUTANE is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. N-BUTANE is easily ignited. Its vapors are heavier than air. Any leak can be either liquid or vapor. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. N-BUTANE is used as a fuel, an aerosol propellant, in cigarette lighters, and to make other chemicals.

Air & Water Reactions

Highly flammable.

Reactivity Profile

N-BUTANE can explode when exposed to flame or when mixed with (nickel carbonyl + oxygen). N-BUTANE can also react with oxidizers. Strong acids and alkalis should be avoided. .

Health Hazard

High exposure produces drowsiness but no other evidence of systemic effect.

Fire Hazard

EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966) and Methane (UN1971) are lighter than air and will rise. Hydrogen and Deuterium fires are difficult to detect since they burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.) Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.

Purification Methods

Dry by passing over anhydrous Mg(ClO4)2 and molecular sieves type 4A. Air is removed by prolonged and frequent degassing at -107o. [Beilstein 1 IV 236.]

N-BUTANE Preparation Products And Raw materials

Raw materials

Preparation Products

N-BUTANE Suppliers

Global( 61)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32764 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40399 62
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202,021-54308259
+86-21-54291107 China 43423 64
Chengdu XiYa Chemical Technology Co., Ltd. 4008-626-111
028-84752058 China 9740 57
Chengdu Ai Keda Chemical Technology Co., Ltd. 4008-755-333 ; 028-86676798 ; 028-86757656
028-86757656 China 9884 55
Beijing HuaMeiHuLiBiological Chemical 010-56205725;010-86181995
010-65763397 China 12395 58
TCI Japan 03-3668-0489
03-3668-0520 Japan 28607 80
Cheng Du Micxy Chemical Co.,Ltd 028-85632863 028-64559668 18048500443
028-85632863 QQ: 2509670926 China 13212 58
Chengdu HuaXia Chemical Reagent Co. Ltd 400-1166-196 QQ:800101999
028-84555506 QQ:800101999 China 9720 58

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