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METHANE

METHANE
METHANE
CAS No.
74-82-8
Chemical Name:
METHANE
Synonyms
CH4;Biogas;Methan;carbane;Methane;firedamp;Fire damp;Marsh gas;methanegas;NATURAL GAS
CBNumber:
CB9374483
Molecular Formula:
CH4
Formula Weight:
16.04
MOL File:
74-82-8.mol

METHANE Properties

Melting point:
−183 °C(lit.)
Boiling point:
−161 °C(lit.)
Density 
0.716 g/mL at 25 °C(lit.)
vapor density 
0.55 (vs air)
refractive index 
1.0004
Flash point:
-188 ºC
pka
48(at 25℃)
explosive limit
15%
Merck 
13,5979
Stability:
Stable. Extremely flammable - note low flash point; mixtures with air constitute an explosion hazard. Reacts violently with interhalogens. Incompatible with strong oxidizing agents, halogens, interhalogens, oxygen.
CAS DataBase Reference
74-82-8(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F+
Risk Statements  12
Safety Statements  9-16-33
RIDADR  UN 1971 2.1
WGK Germany  -
RTECS  PA1490000
4.5-31
HazardClass  2.1
Symbol(GHS):
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.
P381 Eliminate all ignition sources if safe to do so.
P410+P403 Protect from sunlight. Store in a well-ventilated place.

METHANE price More Price(1)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 463035 Methane electronic grade, ≥99.998% 74-82-8 24l $1465 2017-11-08 Buy

METHANE Chemical Properties,Uses,Production

Chemical Properties

colourless odourless gas

Uses

Constituent of illuminating and cooking gas, in the manufacture of hydrogen, hydrogen cyanide, ammonia, acetylene, formaldehyde, in organic syntheses.

General Description

METHANE is a colorless odorless gas. METHANE is also known as marsh gas or methyl hydride. METHANE is easily ignited. The vapors are lighter than air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. METHANE is used in making other chemicals and as a constituent of the fuel, natural gas.

Air & Water Reactions

Highly flammable.

Reactivity Profile

METHANE is a reducing agent, METHANE is involved in many explosions when combined with especially powerful oxidizers such as bromine pentafluoride, chlorine trifluoride, chlorine, iodine, heptafluoride, dioxygenyl tetrafluoroborate, dioxygen difluoride, trioxygen difluoride and liquid oxygen. Other violent reactions include, chlorine dioxide and nitrogen trifluoride. Liquid oxygen gives an explosive mixture when combined with liquid METHANE [NFPA 1991]. Contact of very cold liquefied gas with water may result in vigorous or violent boiling of the product and extremely rapid vaporization due to the large temperature differences involved. If the water is hot, there is the possibility that a liquid "superheat" explosion may occur. Pressures may build to dangerous levels if liquid gas contacts water in a closed container [Handling Chemicals Safely 1980].

Health Hazard

High concentrations may cause asphyxiation. No systemic effects, even at 5% concentration in air.

Fire Hazard

Special Hazards of Combustion Products: None

METHANE Preparation Products And Raw materials

Raw materials

Preparation Products


METHANE Suppliers

Global( 41)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20808 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32766 55
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 info@energy-chemical.com China 44193 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202,021-54308259
+86-21-54291107 info@hanhonggroup.com China 31111 64
Wuxi Zhongkun Biochemical Technology Co., Ltd. 051085629785,051085625359,QQ974229108,QQ1373125882
051085625359 sales@reading-chemicals.com China 19314 58
Hubei Jusheng Technology Co.,Ltd North:027-59599241,18871490274,QQ:1400878000 South:027-59599240,18871490354,QQ:1400868000
FAX:027-59599240 sales@hubeijusheng.com China 9925 58
Chizhou Kailong Import and Export Trade Co., Ltd. Please Email
- xg01_gj@163.com China 9689 50
Sigma-Aldrich 021-61415566 800-819-3336(Tel) 400-620-3333(Mobile)
021-61415567 orderCN@sial.com China 21770 80
Shanghai wechem chemical co., ltd 021-5198 7501
021-6192 7501 info@wechem.cn China 269 58
Zibo Zeno Pharmaceutical Technology Co., Ltd. 0533-8800999 13515338377
0533-7544744 zenuoyiyao@163.com China 58 58

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