388696
Polybutenes
average Mn ~920 by VPO, isobutylene >90 %
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About This Item
Linear Formula:
[-CH2C(CH3)2-]x[-CH2CH(C2H5)-]y
CAS Number:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
form
liquid
mol wt
average Mn ~920 by VPO
feature
hydrophobic
composition
isobutylene, >90%
viscosity
200-235 cSt(100 °C)(lit.)
transition temp
pour point (ASTM D 97) −7 °C
density
0.89 g/mL at 25 °C
SMILES string
CCC=C.C\C=C\C
InChI
1S/2C4H8/c2*1-3-4-2/h3-4H,1-2H3;3H,1,4H2,2H3/b4-3+;
InChI key
WTOOLIQYCQJDBG-BJILWQEISA-N
Application
Hydrophobic material is derivatized to make detergents and anti-rust additives. Adds tack, flexibility and water repellency to adhesives and coatings. Contributes ′cling′ to LLDPE films. Plasticizer for polymers, lubricants and metal-working fluids.
Features and Benefits
Tackiness increases with molecular weight. Some internal double bonds may be present.
Physical form
Terminal vinyl group.
Other Notes
remainder 1- and 2-butenes
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Asp. Tox. 1 - Skin Irrit. 2
Storage Class
10 - Combustible liquids
WGK
WGK 1
Flash Point (°F)
159.8 °F - closed cup
Flash Point (°C)
71 °C - closed cup
PPE (personal protective equipment)
Eyeshields, Gloves
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