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Acetylene

Acetylene structure

CAS No:
74-86-2
Formula:
C2H2
Chemical Name:
Acetylene
Synonyms:
Ethyne;Acetylene;Vinylene;Ethine;Narcylen;57113-74-3
Categories:
Organic Chemistry > Hydrocarbons and Derivatives

Description

Acetylene (100% purity) is odorless but commercial purity has a distinctive garlic-like odor. It is very soluble in alcohol and almost miscible with ethane. Acetylene is a flammable gas and kept under pressure in gas cylinders. Under certain conditions, acetylene can react with copper, silver, and mercury to form acetylides, compounds that can act as ignition sources. Brasses contain a form acetylides, compounds that can act as ignition sources. Brasses containing less than 65% copper in the al

Acetylene (systematic name: ethyne) is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities.

Acetylene Basic Attributes

Molecular Weight：

26.04

Exact Mass：

26.04

EC Number：

200-816-9

HScode：

2901292000

Characteristics

PSA：

XLogP3：

0.37

Appearance：

Acetylene appears as a colorless gas with a faint garlic-like odor. Easily ignited and burns with a sooty flame. Gas is lighter than air. Flame may flash back to the source of a leak very easily. Under prolonged exposure to fire or heat the containers may rupture violently and rocket.

Density：

0.6208 g/cm³ @ Temp: -82 °C

Melting Point：

-80.8 °C

Boiling Point：

-84.0 °C @ Press: 760 Torr

Flash Point：

-18°C

Refractive Index：

1.316

Water Solubility：

H2O: 0.106 g/100 mL

Storage Conditions：

Acetylene should be kept stored in a cool, dry place in a tightly sealed container, and should only be used in a well-ventilated area. Cylinders should be separated from oxygen and other oxidizers by a minimum of 20 ft or by a barrier of non-combustible material at least 5 ft high, having a fi re resistance rating of at least 30 min. Storage in excess of 2500 cu ft is prohibited in buildings with other occupancies. Cylinders should be stored upright with a valve protection cap in place and fi r

Vapor Pressure：

3.04 X 104 mmHg (~40 atmospheres) at 16.8 °C

Vapor Density：

0.91

Toxicity：

Inhalation-Mammal LCL0: 50000 PPM/ 5 minutes

Flammability characteristics：

Open flame, flammable when heated; burning produces irritating smoke

Explosive limit：

Explosive limits , vol% in air: 2.5-100

Odor：

Not unpleasant odor unless impure (due to phosphine)

Safety Information

Hazard category：

2.1

Transport codes：

UN 1001

hazard class code：

5-6-12

safety instructions：

9-16-33

RTECS Number：

AO9600000

Marks：

F+

Storage features：

The warehouse is ventilated, low temperature and dry; lightly loaded and unloaded; stored separately from oxygen, air and chlorine gas cylinders

Explosive characteristics：

Open flame mixed with air, explosive when heated; explosive when exposed to copper, mercury, silver, chlorine, fluorine

Stability/Shelf Life：

Acetylene at 170 deg C is somewhat stabilized by presence of acetic acid

Precautionary statement(s)：

P210, P377, P381, P403

Hazard Statements：

H220

RIDADR：

UN 1001

Toxicity

Toxicity class：

practically nontoxic

Acetylene Use and Manufacturing

Illuminant, oxyacetylene welding, cutting, and soldering metals, signalling; pptg metals, particularly Cu; manufacture of acetaldehyde, acetic acid; fuel for motor boats.

Computed Properties

Molecular Weight:26.04
XLogP3:0.4
Exact Mass:26.0156500638
Monoisotopic Mass:26.0156500638
Heavy Atom Count:2
Complexity:8
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Synthesis Route

6922-94-7

62435-43-2

188290-36-0

34557-54-5

Material

Calcium chloride

Acetone

Calcium carbide

Sulfuric acid

Sodium hypochlorite

Nitrogen

Downstream Products

Vinyl acetate

1,4-Butanediol

Acetic acid

Poly(vinyl chloride)

Recommended Suppliers of Acetylene

Shandong Baiding Chemical Co., LTD Contact Supplier

CN
2 YRS

Business licensed

Trader Supplier of Ortho-xylene,1-Butylene,Ammonium hydrogen fluoride,Bitumen

Synthetic Raw Materials Colorless transparent gas C2H2 99% acetylene Ethyne CAS No. 74-86-2

Unit Price: $13000-15000 /MT FOB

CAS No.: 74-86-2

Grade: Industrial Grade

Content: 99%

Inquiry
Chengdu Xenon Tritium Technology Co.,Ltd. Contact Supplier

CN
1 YR

Business licensed

Trader Supplier of Industrial Gases

Acetylene Supplier C2H2 Gas

CAS No.: 74-86-2

Grade: Industrial Grade

Content: 99.99%

Inquiry