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Rubber Vulcanizing Agent (Insoluble Sulfur)OT20 (IS-HS-7020 highly thermal stability) Technical Specification Appearance: Yellow Powder (Non-flying) Sulphur Content (%): 80.0í+1.0 Insoluble Sulphur Content (% min.): 72 High temp. Stability (% min.) (105íµ*15min): 75 Oil Content (%): 20.0í+1.0 Acid Content (As H2SO4), % max.: 0.05 Heating Loss (60íµ*2h), % max.: 0.40 Ash, % max.: 0.15 Fineness(100mesh), % min.: 99.8
GOST 127.1-93 "Technical sulphur. Specifications", grade 9995. Limits of the standard, not of this listing; ask the seller for the test certificate of the cargo.
| Property | Unit | Min | Max |
|---|---|---|---|
| Sulphur | % (mass) | 99.95 | |
| Ash | % (mass) | 0.03 | |
| Organic substances | % (mass) | 0.03 | |
| Acids, as sulphuric acid | % (mass) | 0.003 | |
| Mechanical impurities (paper, wood, sand) | not allowed |
GOST 127.1-93 also defines higher and lower purity grades; check which grade the seller quotes.
Source: Rosneft (Saratov Oil Refinery), quality certificate No. 3513 for grade 9995 sulphur, column 'Norm under GOST 127.1-93' (retrieved 2026-10-29).
US$ 115 – 4,356 per Metric Ton
Median US$ 350 per Metric Ton, from 13 sulphur listings that state a price. These are sellers’ asking prices, not traded prices; terms (FOB / CIF, quantity, port) differ by listing.
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Wuxi Huasheng Chemical Additives Factory lists Insoluble sulfur OT33 on Global Trade Plaza from China. The listing was added in June 2025.
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Wuxi Huasheng Chemical Additives Factory is a B2B supplier based in China, listed on Global Trade Plaza since June 2025. Use Inquire now or Chat with supplier to ask Wuxi Huasheng Chemical Additives Factory for prices, specifications and documents for Insoluble sulfur OT33.
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