1701Chemical EngineeringMedium
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are________?
A50°C and 1 kgf/cm2
B250°C and 10 kgf/cm2
C250°C and 1 kgf/cm2
D50°C and 3 – 4 kg/cm2
Correct answer
D. 50°C and 3 – 4 kg/cm2
Explanation
The correct answer is 50°C and 3 – 4 kg/cm2.