Specificatin		Chemical Analysis:
Product Name	Rubber Accelerator MBT (M)	Chemical Name:	2-mercaptobenzothiazole
		CAS No.:	149-30-4
Molecular Formula:	C7H5NS2	Molecular Weight:	167.26

 

Product Information:

***Specification

 

Appearance (visual inspection):	Light yellow powder	Assay content%  œ	95
Initial M.P.¥:	170.0	Loss on drying %›:	0.50
Ash content %›:	0.50	Residues(150um)%›:	0.10
Compacted bulk density (kg/m3)	560-600	Bulk density (kg/cm3):	400-440
Density at 25¥  (g/cm3)	1.42-1.52

 

 

***Typical Properties

 

It  is  yellow powder  with  little  osmyl  and  taste  bitter.  The  density is  1.42-1.52.it  is  soluble  in  ethyl  acetate,  ethanol, solution of NaOH and Na2CO3, insoluble in benzene, water and gasoline.Lower explosion limit is 21g/m3.

 

***Recommended Applications

 

In NR compounds, MBT based vulcanization systems exhibit less reversion upon overcure than other systems. Vulcanizate obtainedwith MBT tend to have a relatively low modulus but very good aging properties.

To achieve a faster cure and a higher modulus. MBT can be boosted by the use of secondary accelerators, such as

 

ZBEC, ZDEC, TMTD or DPG.

 

For the vulcanization of EPDM or IIR rubbers, MBT is a well established component of many existing vulcanization systems. MBT also finds application in latex form cure systems. It is non-staining and non-discoloring.

 

***Handling and Storage recommendations

 

Store MBT in a cool, dry, well-ventilated area, avoiding exposure of the packaged product to direct sunlight. Usually the shelf time is 24 months while the recommend use of time is within 12 months.

 

 

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