Meyors Chemical HIS 70-20 Rubber Vulcanization Agent

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Meyors Chemical HIS 70-20 Rubber Vulcanization Agent
Categories:	Other Engineering Material; Additive/Filler for Polymer
Material Notes:	Product Code: MSHQD -VA032-04 OT Chemical Name: Polymeric Sulfur Trade Name: Rubber Vulcanization Agent HIS 70-20 CAS No.: Polymeric Sulfur: 9035-99-8; Rhombic Sulfur: 7704-34-9; High pressure and hydrotreated naphthenic oil: 64742-52-5 Typical Properties: Yellow powder with slight odor, non-toxic. HIS 70-20 is not stable and at vulcanization temperatures HIS70-20 will de-polymerize to soluble sulfur. HIS 70-20 is insoluble in CS2 and in water. Recommended Applications: HIS 70-20 is a non-blooming vulcanizing agent for unsaturated. It is polymeric sulfur and is insoluble in elastomers. so it will retard bin scorch, prevent migration of sulfur and preserve surface tack. This is important in the manufacture of tires and other plied up rubber goods. HIS 70-20 is a special grade with high thermal stability. It is used in compounds containing a relatively large sulfur loading above the solubility of sulfur in the elastomer. Information provided by Meyors Chemical INC Limited
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Physical Properties	Original Value	Comments

Density	1.60 - 1.70 g/cc
Molecular Weight	256.5 g/mol
Ash	<= 0.050 %

Descriptive Properties
Appearance	Non-rised yellow powder
Content	<0.05%	Acid Content (as H2SO4)
	<0.5%	Residues ( 63µm)
	>90%	Insoluble sulfur content (On total S)
	19-21%	Oil
	79-81%	Element Sulfur
Loss on drying	<0.5%
Stability	>75%	high temperature (105 ?15 minutes) insoluble sulfur content

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PMEYORS048 / 316630

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