Diisobutylene (DIB)
Business segment & products
Diisobutylene (DIB)
Our DIB is a C8 olefin obtained by dimerizing the isobutylene in Fraction C4. It can be used to produce a number of useufl derivatives through an addition, oxo reaction and the like. It is used as a basic raw material for alkylphenol, isononalic acid, rubber chemical, etc.
| ▼ Molecular Formula | ▼ ENCS No. | ▼ CAS No. | ▼ Structural Formula |
|---|---|---|---|
| C8H16 | 2-24 | 25167-70-8 |
2,4,4-Trimethylpentene-1 (TMP-1) 2,4,4-Trimethylpentene-2 (TMP-2) |
PHYSICAL PROPERTIES
| ▼ TEST | ▼ UNIT | ▼ ANALYSIS | |
|---|---|---|---|
| TMP-1 | TMP-2 | ||
| Molecular Weight | 112.2 | 112.2 | |
| Boiling Point | ℃ | 101.4 | 104.9 |
| Melting Point | ℃ | -93.5 | -106.4 |
| Specific Gravity at（15/4℃） | 0.7192 | - | |
Refractive index（ ） |
1.4086 | 1.4160 | |
| Latent Heat of Evaporation | J/g | 251.2 | 253.3 |
| Specific Heat at 60℃ Liquid Vapor （Cp） Vapor（Cｖ） |
J/ｇ・℃ | 2.13 1.57 1.49 |
2.13 1.57 1.49 |
| Flash Point | ℃ | -6.7 MAX. | -1.7 |
| Explosive Limits in Air(estimation) | vol％ | 1.0～7.0 | 1.0～7.0 |
SPECIFICATIONS AND TYPICAL ANALYSIS
| ▼ TEST | ▼ UNIT | ▼ SPECIFICATIONS | ▼ TYPICAL ANALYSIS |
|---|---|---|---|
| Appearance | Clear and Colorless | Clear and Colorless | |
| Composition TMP-1 TMP-2 |
wt％ wt％ |
)95 MIN. |
76 20 |
| Sulfer Olefin Peroxide |
ppm wt％ ppm |
25 MAX. 99 MIN. 10 MAX. |
5 99.9 0.0 |
| Color (Saybolt) | +25 MIN. | +30 | |
| Density （15℃） | g／cm3 | 0.717～0.725 | 0.7213 |
| Distillation Test
Initial Boiling Point
5％ 95％ Dry Point Total Distillation |
℃ ℃ ℃ ℃ vol％ |
95.0 MIN. )with in2℃ 110.0 MIN. report |
100.0 100.5 102.0 103.0 98.0 |
MAJOR USE: Raw material for para octylphenol, isononylalcohol, isooctane and rubber chemicals
UN CLASS 3 UN NO.2050
Note
The descriptions herein are based on the available sources and information but no guarantee is given for its integrity or accuracy.