Cyanuric chloride → HCID 21479584, compound

Participants

Reaction Steps

19 parts of cyanuric chloride are stirred vigorously into 50 parts of water, with addition of a wetting agent and 5 parts of disodium hydrogen phosphate, at a temperature of 0° C. A neutral solution of 48 parts of 2-(2-acetylamino-4-aminophenylazo)naphthalene-1,5-disulfonic acid in 450 parts of water is added dropwise, during which the pH is kept at a value of 4.5 by addition of sodium hydroxide solution. A solution of 2-[2-acetylamino-4-(4,6-dichloro-1,3,5-triazin-2-ylamino)phenylazo]naphthalene-1,5-disulfonic acid is obtained (solution 2).

Provenance & Evidence