| Name | 1-BUTEN-3-YNE |
| Synonyms | Buten-3-yne 1-BUTEN-3-YNE VINYLACETYLENE Buten-3-yne, 1- 1-Buten-3-yne (8CI, 9CI) 1-buten-3-yne,vinylacetylene |
| CAS | 689-97-4 |
| EINECS | 211-713-3 |
| Molecular Formula | C4H4 |
| Molar Mass | 52.07 |
| Density | 0.6800 |
| Melting Point | 203 °C(Solv: water (7732-18-5)) |
| Boling Point | 3°C |
| Refractive Index | 1.4161 |
| UN IDs | 1954 |
| Raw Materials | Diacetylene Cyanoacetylene Acetylene Benzene |
| Downstream Products | 1,2-BUTADIENE 4-ETHOXY-2-BUTANONE SELENOPHENE |
| HazardClass | 2.1 |
| toxic substance data | 689-97-4(Hazardous Substances Data) |
| EPA chemical information | Vinyl acetylene (689-97-4) |
production method
Acetylene is prepared by dimerization in the presence of cuprous chloride and ammonium chloride hydrochloric acid solution after pretreatment.
category
Harmful gases
toxicity classification
low toxicity
acute toxicity
inhalation-mouse LC50: 97200 mg/m3/2 h
explosive hazard characteristics
It forms peroxide with air and oxygen, which is easy to explode; it decomposes quickly when heated; it is mixed with 1,3-butadiene or oxygen, heating and explosion; reacts with silver nitrate and explodes
flammability hazard characteristics
Thermal decomposition discharges spicy and irritating smoke
storage and transportation features
The warehouse is ventilated and dry at low temperature; it is stored in a closed manner; it is stored separately from oxidants and acids; it is not easy to store for a long time to prevent the formation of peroxides
fire extinguishing agent
Water, dry powder, dry sand, carbon dioxide, foam, 1211 fire extinguishing agent