橡胶防老剂MB 防老剂MB

防老剂 mb(antioxidant mb)

cas-no:583-39-1
化学名称： 2－硫醇基苯咪骈唑

英文名称： 2-mercaptobenzimidazole; 2-benzimidazolethiol;

分子量： 150.16
molecular weight: 150.16

用途： mb在橡胶工业上是主要的非污染性防老剂，能减少橡胶硫化时的变色。本品适于制造透明、白色及艳色制品，耐热及泡沫制品，本品不变色，不被污染。
main usage:an important pollution-free age-resistants which widely used in rubber processing.it is effective to extanuate that fade in valcanization.

质量标准(quality standard)：
1.外观appearance: 淡黄色或灰白色粉末
appearance:light yellow or grey powder
2.初熔点≥290℃
early melting point:not less than 290℃
3.水份≤0.50%
heatdeceleration:not more than 0.50%
4.灰份≤0.50%
ash content:not more than 0.50%
5.筛余物： （40孔/厘米筛）≤0.10%
fineness:not less than 99.90%
(pass through the sifter with 1600 hole/cm2)

包装及储运： 10kg纸板箱，储存在干燥处；防潮或暴晒