Polybutenes
Polybutenes
CAS: 9003-29-6
Molecular Formula: C8H16
Polybutenes - Names and Identifiers
Polybutenes - Physico-chemical Properties
| Molecular Formula | C8H16 |
| Molar Mass | 112.21264 |
| Density | 0.908g/mLat 25°C |
| Melting Point | 94.3-104.8 °C |
| Boling Point | 293-341 °C |
| Flash Point | >230°F |
| Vapor Presure | 19.7hPa at 20℃ |
| Storage Condition | -196°C |
| Refractive Index | n20/D 1.504 |
| Physical and Chemical Properties | Colorless to yellowish viscous liquid, tasteless, odorless or micro-cream special mother odor. The average molecular weight is 500 to 5500. Soluble in benzene, ether, chloroform, n-heptane and n-hexane, almost insoluble in water, NNN. Ethanol. The relative density (d415) was 0.8~0.9. Softening Point 60 °c. |
| Use | Gum base. It is used to make up for the shortcomings of polyvinyl acetate hardening when cold, and the population is too soft after saliva, and the amount of polyvinyl acetate accounts |
Polybutenes - Risk and Safety
| WGK Germany | 1 |
| RTECS | EM9032000 |
Polybutenes - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | mixed with the same amount of polyvinyl acetate and chewed for 15min, polybutene did not transfer to saliva. 0.2~2.0 g/kg for 6 months, no abnormality (rat, oral). |
| use limit | GB 2760-1996:GMP is limited. |
| use | gum base. It is used to make up for the shortcomings of polyvinyl acetate hardening when cold and the population being too soft after saliva. The dosage accounts for polyvinyl acetate |
| production method | naphtha obtained from petroleum is cracked and fractionated to obtain a mixed gas of butene and butane, which is polymerized at a temperature of -30~30 ℃ with lead chloride and Fred a gram of Ford catalyst (Friedel-Crafts catalyst). the polymer is refined and filtered after alkali washing and removing the catalyst with adsorbent. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:02:46
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