- CYCLOTRIMERIZATION OF THIOCYANIC ACID IN ORGANIC SOLVENTS
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Thiocyanic acid in organic solvents (i-PrOH Bu2O, AcOH, dioxane) trimerizes to form 1,3,5-trimercapto-sym-triazine.
- Rybin, A. G.,Zil'berman, E. N.,Etlis, I. V.,Chervyakova, G. N.
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- Preparation method and application of 2,4,6-trisulfydryl s-triazine disodium salt aqueous solution
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The invention relates to the field of environmental protection, in particular to a preparation method and application of a 2,4,6-trisulfydryl s-triazine disodium salt aqueous solution. The preparationmethod of the 2,4,6-trisulfydryl s-triazine disodium salt aqueous solution comprises the following steps: adding cyanuric chloride and a sodium sulfide aqueous solution into a sodium hydrosulfide aqueous solution, wherein the adding speed of the cyanuric chloride and the sodium sulfide aqueous solution are controlled to obtain a mixed solution with the pH value of 10-12, the temperature of the mixed solution being controlled to be 0-20 DEG C; heating the mixed solution to initiate the reaction between sodium hydrosulfide and sodium sulfide react with cyanuric chloride, conducting cooling treatment and suction filtration in sequence after the reaction is completed, thus preparing the 2,4,6-trimercapto-s-triazine disodium salt aqueous solution. According to the method, the molar ratio of sodium hydrosulfide to sodium sulfide is changed, so that alkali is prevented from being used for controlling the pH value of a reaction system, hydrolysis reaction is inhibited to the maximum extent, and therefore, the purity and the yield of the 2,4,6-trimercaptos-triazine disodium salt are guaranteed.
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Paragraph 0086-0087
(2020/07/24)
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- METHOD FOR THE PRODUCTION OF 2, 4, 6-TRIMERCAPTO-1, 3, 5-TRIAZINE
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The present invention is directed towards a method for the production of 2, 4, 6-trimercapto-1, 3, 5-triazine (TMT-H3). In particular, the method of the subject matter relates to the operation of acidifying the salts of 2, 4, 6-trimercapto-1, 3, 5-triazine in aqueous solution and in a defined pH range.
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Page/Page column 9-10
(2008/06/13)
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- THIOL COMPOUND DERIVATIVES, HARDENING COMPOSITIONS CONTAINING THESE DERIVATIVES AND MOLDED ARTICLES THEREOF
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The present invention relates to a thiol compound derivative represented by the following formula (1), a curable composition containing the derivative, and a molded product made of the composition. More particularly, the invention relates to a thiol compound derivative which is added to a polymer having reactivity to a thiol derivative substituent to provide a curable composition, a curable composition containing the derivative and a crosslinkable halogen-containing crosslinking polymer, and a crosslinked molded product of the composition. wherein X1, X2 and X3 are each a group represented by the following formula (2).
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