Acetylene
Also known as: 4-01-00-00939, Acetylen, C2H2, EINECS 200-816-9, Ethine, Ethyne, MFCD00008567, Narcylen, Vinylene, Welding Gas, acetylene, ethenylene, vinylene
Acetylene (CAS 74-86-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C2H2 and a molecular weight of 26.037 g/mol. Key properties include a melting point of -88°C, a boiling point of -28 ºC, a density of 0.6±0.1 g/cm3 and a flash point of -18 ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 74-86-2
- Jingsj CID
- J-29820-1
- Molecular Formula
- C2H2
- Molecular Weight
- 26.037 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -88°C |
|---|---|
| Boiling Point | -28 ºC |
| Density | 0.6±0.1 g/cm3 |
| Flash Point | -18 ºC |
| Exact Mass | 26.015650 |
| LogP | 0.37 |
| Vapor Pressure | 69690.6±0.1 mmHg at 25°C |
| Refractive Index | 1.316 |
| Additional Property | 0.106 g/100 mL |
Customs & Trade Information
| HS Code | 2901292000 |
|---|---|
| Summary | 2901292000 ethyne。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:2.0%。general tariff:45.0% |
Frequently Asked Questions
What is the CAS number of Acetylene?
The CAS number of Acetylene is 74-86-2.
What are the molecular formula and molecular weight of Acetylene?
Acetylene has molecular formula C2H2 and molecular weight 26.037 g/mol.
What are the upstream and downstream products of Acetylene?
For Acetylene, Downstream Products: DI-N-BUTYLTELLURIUM.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Acetylene (CAS 74-86-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29820-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.