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Hazard Predictions

• Flammable: Reaction products may be flammable
• Generates gas: Reaction liberates gaseous products and may cause pressurization
• Intense or explosive reaction: Reaction may be particularly intense, violent, or explosive
• Toxic: Reaction products may be toxic

Dimethyl sulfide reacts explosively with HNO3 in dioxane, even at liquid nitrogen temperatures (Rudakov, E.S. et al. 1972. Chemical Abstracts 76:13515.).

Oxidization of long-chain thiols with HNO3 can accelerate to explosion (Quam, G.N. 1963. Safety Practices for Chemical Laboratories. Villanova, PA: Villanova Press. pp. 52-53.).

Thiols react exothermically with HNO3, potentially igniting the reaction mixture (Filby, W.G. 1974. Labratory Practice 23:355).

Thiols may ignite spontaneously with fuming nitric acid (McCullogh, F. et al. 1955. Proceedings from the 5th Comb. Symposium. New York, Reinhold. pp. 181.; Lewis, R.J., Sr. 1992. Sax's Dangerous Properties of Industrial Materials, 8th Edition. New York: Van Nostrand Reinhold. pp. 2689.).

Methylthiophene may ignite on contact with HNO3 (Rust, E., Ebert, A., Unfalle beim Chemischen Arbeiten, Zurich, Rascher Verlag, 2nd edition, 1948, pp. 318.).

Organic sulfides may release toxic and flammable H2S gas upon exposure to oxidizing acids (Predicted by comparison to similar reactions).

Potential Gas Byproducts

• Hydrogen Sulfide (H2S)