Chem. [f. TRI- 5 + SULPH(URIC.] A formative of the names of carbon compounds containing three SO2 groups, or three SO2 . OH groups, and derivatives of the latter. (TRISULPHONE, and TRISULPHONIC, with TRISULPHONATE, now also express these meanings.)

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1867.  Griess in Jrnl. Chem. Soc., XX. 101. Trisulphodiphenylenic Acid … its composition may also be expressed in two different ways, viz. C12H6.S3H4O11, or C12H6.S3H6O12.

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1875.  Watts, Dict. Chem., VII. 1111. NvH2SO3K)3 Trisulphammonate of potassium…. ONv(SO3K)3 Trisulphoxyazate of potassium.

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