9006-03-5 Usage
Chemical Properties
Chlorinated rubber is typically prepared by treating a solution of masticated
natural rubber in chloroform or carbon tetrachloride with chlorine at
80-100°C until sampling indicates the product has a chlorine content of
about 65%. During this time, hydrogen chloride is evolved. After the passage
of chlorine has been stopped, the solution is refluxed until the evolution of hydrogen chloride ceases; this results in a product of good stability. The
chlorinated rubber is then isolated by precipitation with methanol.
Preparation
The reaction of natural rubber and chlorine is complex and possibly
involves the following sequence:
Definition
An elastomer (natural
rubber or a polyolefin) to which 65% of chlorine
has been added to give a solid, film-forming resin.
White, amorphous powder available in viscosity
grades from 5 to 125 c P, the figures indicating vis-
cosity of a 20% solution in tol
Hazard
Do not dry-mill chlorinated rubber with
zinc oxide; mixture reacts violently at 216C. Do
not use in baked enamels.
Check Digit Verification of cas no
The CAS Registry Mumber 9006-03-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 9006-03:
(6*9)+(5*0)+(4*0)+(3*6)+(2*0)+(1*3)=75
75 % 10 = 5
So 9006-03-5 is a valid CAS Registry Number.