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    Related: Triazine Compound Melamine Cyanurate MCA Melamine
    • Cyanuric Acid CAS 108-80-5

    Cyanuric Acid CAS 108-80-5

    Cyanuric Acid CAS 108-80-5 is a cyclic triazine derivative chemically defined as 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione , functioning primarily as a chlorine stabilizer in industrial water treatment and a chemical intermediate in the synthesis of chlorinated isocyanurates. Also known as Isocyanuric acid or s-Triazinetrione, this compound is utilized to prevent the photochemical degradation of active chlorine in outdoor aqueous systems and serves as a precursor for the manufacturing of Melamine Cyanurate (MCA) flame retardants and specialized cross-linking agents. We provide professional access to this material with competitive factory pricing and the ability to meet customized specifications for various manufacturing requirements. Our commitment to technical transparency ensures that every shipment is accompanied by comprehensive MSDS, TDS, COA documentation to support your quality assurance protocols, and we maintain capacity for consistent bulk supply to facilitate large-scale industrial operations.

    • CAS: 108-80-5
    • Synonyms: Isocyanuric acid, 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione, s-Triazinetrione, Tricarbimide, 1,3,5-Triazine-2,4,6-triol
    • Einecs: 203-618-0
    • Molecular Formula: C₃H₃N₃O₃
    • Grade: Industrial Grade
    • Package: 25 kg bag (standard); 1000 kg big bag optional (customizable)
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    Product Description

    Cyanuric Acid is also known as 1,3,5-triazine-2,4,6-triol. It has good thermal stability and very low volatility. In pool and spa water treatment, it helps reduce chlorine loss caused by sunlight, improving the effectiveness and stability of free chlorine in outdoor systems. It is also used as a raw material/intermediate for manufacturing chlorinated isocyanurates and other related products.

    1 Physicochemical Properties
    2 Applications
    3 Storage Conditions
    4 Safety Precautions

    Physicochemical Properties

    Typical values; final specifications are subject to batch COA.

    ItemTypical Value / Specification
    AppearanceWhite crystalline powder
    CAS108-80-5
    EC (EINECS)203-618-0
    Molecular formulaC₃H₃N₃O₃
    Molecular weight129.07 g/mol
    Melting point320–360 °C (decomposes)
    Density~1.7–1.8 g/cm³ (typical)
    Solubility in water (25 °C)Low (reported ~2.7 g/L)
    OdorOdorless (typical)

    Applications

    • Swimming pool & spa water treatment: chlorine stabilizer to reduce UV degradation
    • Chemical intermediate: for manufacturing chlorinated isocyanurates (e.g., disinfectant intermediates)
    • Industrial formulations where triazine-based intermediates are required (application-dependent)

    Storage Conditions

    • Store in cool, dry, well-ventilated warehouse; keep containers tightly sealed.
    • Protect from moisture and contamination; keep away from strong oxidizers.
    • Avoid generating dust during handling.
    • Typical shelf life: 24 months under proper storage (depends on packaging & humidity control).

    Safety Precautions

    • Avoid dust inhalation; use local ventilation and dust mask/respirator where necessary.
    • Wear protective gloves and safety goggles; wash hands after handling.
    • Eye irritation classification can vary by supplier/regulatory context; some SDS classify it as Eye Irritation Category 2 (H319)—follow the SDS provided with your shipment.
    • Spills: avoid raising dust, collect mechanically, dispose according to local regulations.

    FAQ - Technical & Supply Chain

    • Q:

      What is Cyanuric Acid CAS 108-80-5?

      A: Cyanuric Acid, also called isocyanuric acid or 1,3,5-triazine-2,4,6-trione, CAS 108-80-5, is a white crystalline triazine compound with the molecular formula C3H3N3O3. It is mainly used as a chlorine stabilizer and as an intermediate for chlorinated isocyanurates.
    • Q:

      How does Cyanuric Acid stabilize chlorine in pool water?

      A: Cyanuric acid forms a weak association with free chlorine, protecting it from rapid destruction by sunlight. This slows UV degradation and helps maintain more stable free-chlorine levels in outdoor swimming pools and spas.
    • Q:

      Is Cyanuric Acid the same as isocyanuric acid?

      A: For industrial use, cyanuric acid and isocyanuric acid are treated as the same triazine compound and share CAS 108-80-5. The names emphasize different tautomeric or structural representations, but commercial material is the same 1,3,5-triazine-based substance.
    • Q:

      What chlorinated products are made from Cyanuric Acid?

      A: Cyanuric Acid is a key precursor for chlorinated isocyanurates such as trichloroisocyanuric acid and sodium or potassium dichloroisocyanurate. These derivatives are used as disinfectants and sanitizers in water treatment and related applications.
    • Q:

      What are typical specifications for industrial Cyanuric Acid?

      A: Industrial Cyanuric Acid is normally a white crystalline powder with molecular weight about 129.07, melting/decomposition in the range of about 320-360 C, and low water solubility around 0.27-0.3 g/100 mL at 25 C. Purity, moisture, residue and particle size limits vary by grade and are defined by the supplier COA.

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