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VULCANIZATION? ACCELERATOR MBT（M）
Chemical name:2-Mercaptobenzothiazole
Chemical formule:C7H5NS2
Structural formule:.jpg)
M.W.:167.24
Shape and properties:
Light yellow or greyish white powder or granular with slightly foul odour and bitter taste,nonpoisonous.Specific graviy:1.42-1.52.Melting point:over 170 oC.Easily soluble in ethyl ace,acetone,thin solution of sodium hydroside and sodium carbonate,soluble in ethyl alcohol,not easily soluble in benzene,insoluble in water and gasoline.Stabel in storage.
Specification:
| Title of index |
Top grade
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First grade
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Qualified grade
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External appearance
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Light yellow or greyish white powder or granular
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Beginning melting point oC≥
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173.0
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171.0
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170.0
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Reduction at heating %≤
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0.30
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0.40
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0.50
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Ash content%≤
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0.30
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0.30
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0.30
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Residues(150μm)% ≤
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0.0
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0.10
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0.10
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- The melting point means the temoerature in which the dried products begin melt.
- The residue is used for powder,but not grain.
Application:
The product is general-purpose rubber accelerator,extensively used in vulcanization of naturl and sunthetic rubbers,has wide range of vulcanization,can be exployed alone and together with dithiocarbamates,thiuram type,guanidines and other alkaline accelerators.The accelerator easily causes prevulcanization in the presence of furnace carbon blace,easily disperses,doesn’t discolour and contaminate,and has bitter taste,so is not suitable for foodstuff rubber goods.It is mainly usde in manufacture of rubber tire,rubber belts,rubber shoes and othertechnical rubber goods.
Package:Net weight 20kg polyethy lene bags loaded..
Storage:
Should be kept in bentilated and dry place.The product has good storage stability,but should be kept off over high or too low temperature and humidity.
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