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| Methyl Selenac |
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| Selenium dimethyldithiocarbamate |
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For SBR, NR, IIR.
Also vulcanizing agent.
Effective in low sulfur-less heat resistant compounds.
Non-discoloring in light compounds.
Generally used with thiazoles to balance scorch and curing characteristics. |
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2-4 phr (vulcanizer in NR. BR. IR, SBR), 0.3-1 phr (primary accelerator in NR, BR, IR, SBR), 0.1-0.3 (sec. accelerator in NR. BR, IR), 3-5 phr (vulcanizer in IIR), 1-2 phr (primary in IIR)
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Composition: Selenium dimethyldithiocarbamate
Physical State: Yellow powder
Melting Range 140-172'C
Moisture Content at 80-85'C 1.0% maximum
Selenium Content 13.0-15.0%
Ash Content 0.75%
Density at 25°C 1.58 Mg/m3
Fineness, through 100 mesh 99.9%
Solubility - Soluble in toluene. Moderately soluble in chloroform. Insoluble in water. |
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