Tetramethylthiuram Monosulfide (TMTM)
Tetramethylthiuram monosulfide, commonly known as TMTM, is a thiuram monosulfide classified under HTS 2930.30.30.00 as an organo-sulfur compound used primarily as an accelerator in rubber vulcanization processes. It facilitates faster curing of rubber compounds at elevated temperatures, improving the mechanical properties of tires and industrial rubber products.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If processed into di- or tetrasulfide form
Higher sulfur variants of thiuram compounds fall under the subsequent statistical suffix in the same heading.
If imported as a formulated rubber accelerator mixture
Mixtures containing TMTM with other additives are classified as prepared chemical mixtures rather than pure compounds.
If supplied as a compound additive for rubber specifically
Certain rubber processing chemicals prepared for specific use may shift to Chapter 38 headings for compounded preparations.
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Import Tips & Compliance
• Verify chemical purity and provide Safety Data Sheets (SDS) for customs clearance; ensure packaging complies with DOT hazardous material regulations
• Common pitfall: mislabeling as di-sulfide variant leading to wrong HTS classification
Related Products under HTS 2930.30.30.00
Accelerator TMTM 98% Powder
High-purity 98% tetramethylthiuram monosulfide powder (TMTM) is a separate chemically defined organo-sulfur compound under HTS 2930.30.30.00. Used in the rubber industry as a delayed-action accelerator for efficient vulcanization of natural and synthetic rubbers. Its monosulfide structure provides solubility in rubber and optimal curing control.
Vulcacizer TMTM Technical Grade
Technical grade tetramethylthiuram monosulfide (TMTM), a thiuram monosulfide, falls under HTS 2930.30.30.00 as a pure organo-sulfur compound. It acts as a secondary accelerator in sulfur vulcanization systems for rubber goods like conveyor belts and seals. The compound's structure ensures compatibility with various rubber polymers without impurities affecting performance.
Rubber Accelerator TS (TMTM)
Rubber accelerator TS, chemically tetramethylthiuram monosulfide, is classified in HTS 2930.30.30.00 due to its organo-sulfur thiuram structure. It promotes efficient cross-linking in rubber during vulcanization, used in tire manufacturing and footwear production. Meets chapter note (a) as a separate chemically defined organic compound.
TMTM Thiuram Monosulfide Flakes
TMTM thiuram monosulfide in flake form is a chemically defined organo-sulfur compound under HTS 2930.30.30.00. The flaked physical state aids dispersion in rubber mixes for vulcanization in automotive parts. Classification holds as physical form does not alter its chemical identity per chapter provisions.