Molekula
Dissolved Acetylene Cylinder
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch
Dissolved acetylene (CAS 74-86-2) is a highly versatile hydrocarbon gas, primarily used in oxy-fuel cutting, welding, and as a chemical feedstock for producing vinyl chloride, acetic acid, and synthetic rubber. It is stored in cylinders dissolved in acetone under pressure for safe handling. This chemical has a molecular formula of C2H2 and a molecular weight of 26.04 g/mol. It requires careful handling due to its flammable and explosive nature, with a signal word of "Danger." Proper ventilation and protective equipment are essential when working with dissolved acetylene. Molekula supplies dissolved acetylene from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.
Overview
- SKU
- 90037829
- CAS Number
- 74-86-2
- IUPAC Name
- acetylene
- EC Number
- 200-816-9
- Molecular Formula
- C2H2
- Molecular Weight
- 26.04
- Exact Mass
- 26.0157
- SMILES
- C#C
- InChIKey
- HSFWRNGVRCDJHI-UHFFFAOYSA-N
- InChI
- InChI=1S/C2H2/c1-2/h1-2H
- PubChem CID
- 6326
Synonyms
- Acetylen
- ACETYLENE
- acetylene;ethyne
- Azetylen
- CH#CH
- Ethin
- Ethine
- Ethyne
- Narcylen
- Vinylene
Literature values
Published physical properties of the substance, not batch specifications.
- Odour
- Not unpleasant odor unless impure (due to phosphine)
- Melting Point
- -80.7 °C (triple point)
- Boiling Point
- -84.7 °C (sublimation point)
- Density
- 0.377 g/cm³ (pressure >1 atm)
- Water Solubility
- 1.2 g/L at 25 °C
- Solubility (other solvents)
- Slightly soluble in ethanol, carbon disulfide; soluble in acetone, benzene, chloroform
- Vapour Pressure
- 4460 kPa at 20 °C
- Refractive Index
- 1.00051
- log P (octanol/water)
- 0.37
Source: PubChem CID 6326 (HSDB, ICSC)
Frequently asked questions
What is dissolved acetylene used for?
Dissolved acetylene is primarily used in welding, cutting metals, and as a chemical feedstock for producing vinyl chloride, acetaldehyde, and other organic chemicals.
What is the chemical formula and molecular weight of dissolved acetylene?
The chemical formula is C₂H₂, and the molecular weight is 26.04 g/mol.
How should dissolved acetylene cylinders be stored?
Store at ambient temperature in a well-ventilated area, away from heat, sparks, or open flames, and secure upright to prevent tipping.
What grade of dissolved acetylene does Molekula supply?
Molekula supplies industrial-grade dissolved acetylene (typically about 98.5% purity or higher), dissolved under pressure in acetone or DMF held in a porous mass for safe cylinder storage.
Can Molekula supply dissolved acetylene in bulk quantities?
Yes, Molekula can supply dissolved acetylene in bulk cylinders (e.g., 40L, 50L, or custom sizes) for large-scale industrial applications.
What documentation comes with a dissolved acetylene order?
Each order includes a Material Safety Data Sheet (MSDS), certificate of analysis (CoA), and transportation documentation (e.g., shipping papers for hazardous materials).
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Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.