| 摘要 |
The invention relates to a method for producing the trisodium salt of 2,4,6-trimercapto-s-triazine, cyanuric chloride being reacted in an aqueous medium at a temperature of 20 to 70ºC using NaSH, Na2S or a mixture of the two compounds at a pH value of 7 to 11, and subsequently the trisodium salt of 2,4,6-trimercapto-s-triazine being precipitated and cleaved at a pH value of = 12 and a temperature of 0 to 20ºC, characterized in that after the cleavage step of the trisodium salt of 2,4,6-trimercapto-s-triazine the mother liquor is adjusted to a pH value of 6 to 8, wherein the monosodium salt of 2,4,6-trimercapto-s-triazine is precipitated.
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