Cyanuric acid (also known as tricyanic acid; 2,4,6-trihydroxy-1,3,5-triazine; 2,4,6-triazinetriol; sym-triazinetriol) is a white crystalline solid. It crystallizes from water as a dihydrate (containing two molecules of water of crystallization). It has a slightly bitter taste and is generally considered non-toxic.

Applications

1. Water Treatment:

2. Used as a chlorine stabilizer for swimming pools to prevent photolysis of hypochlorous acid and improve disinfection efficiency.

3. Disinfectants:

4. Synthesize trichloroisocyanuric acid (TCCA), sodium dichloroisocyanurate (SDIC) and other high-efficiency disinfectants.

5. Flame Retardants:

6. Directly added to nylon, polyester, and polyurethane foam to improve the flame retardant properties of the material.

7. Resins & Coatings:

8. Synthesize cyanuric acid-formaldehyde resins and epoxy resins for high-temperature resistant coatings and adhesives.

9. Agrochemicals:

10. Prepare herbicides (such as selective herbicides) and agricultural sterilants46.

11. Other fields:

12. Metal corrosion inhibitors, cosmetic additives, bleach activation ingredients
    

Safety & Handling：

• Toxicity: Low toxicity (rat oral LD₅₀ = 7700 mg/kg), but high temperature decomposition releases highly toxic hydrogen cyanide.

• Hazard Symbols: Xi (irritant), R36/37/38 (irritant to eyes, respiratory system and skin).

• Precautions: Wear protective equipment during operation to avoid inhalation of dust or contact with skin