Sodium Dichloroisocyanurate Extra Pure

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Sodium Dichloroisocyanurate Extra Pure is a high-purity, white chlorine-releasing compound widely used for its disinfectant, sanitizing, and oxidizing properties. It is valued in laboratory settings for sterile surface treatment and analytical chlorine applications, and it plays a vital role in water disinfection, healthcare sanitation, and emergency relief operations. With approximately 60% available chlorine, it provides a stable, long-acting alternative to liquid bleach or calcium hypochlorite. This compound degrades into relatively benign byproducts like cyanuric acid, making it suitable for tightly controlled environmental and sanitation systems. Its Extra Pure grade ensures consistent performance, high chemical stability, and low impurity content for precision-based applications.

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Categories: Analytical Reagents, Biochemical Reagents, LABORATORY CHEMICALS Tags: AnalyticalReagent, ChlorineReleasingAgent, ExtraPure, HighPurity, LaboratoryDisinfectant, SDIC, SodiumDichloroisocyanurate, SurfaceSterilizer, WaterSanitizer

Description

Table of Contents

Sodium Dichloroisocyanurate Extra Pure

PRIMARY USES

Analytical Reagent & Laboratory Applications:
• Serves as a chlorine-releasing compound for redox titrations and disinfection studies
• Used in the preparation of standard solutions for microbiological and environmental assays
• Applied for surface sterilization of laboratory benches, instruments, and cleanroom environments
• Acts as a stable oxidizing agent in controlled experimental conditions

Water Treatment & Disinfection:
• Extensively used in the disinfection of drinking water, wastewater, industrial water systems, and swimming pools
• Provides a stable, long-lasting source of free available chlorine, ideal for emergency water purification
• Controls microbial contamination in rural and municipal water treatment plants
• Applied in portable water purification systems for military and disaster-relief operations

Healthcare & Public Sanitation:
• Used as a broad-spectrum disinfectant in hospitals, clinics, and public health sanitation programs
• Disinfects reusable medical instruments, hospital floors, toilets, linens, and laundry waste
• Recommended by the World Health Organization (WHO) for emergency disinfection procedures
• Included in infection control protocols for outbreak situations (e.g., cholera, Ebola)

SECONDARY USES

Textile & Laundry Industry:
• Used as a chlorine-based bleaching agent for white fabrics and industrial laundry applications
• Disinfects textile surfaces to reduce bacterial contamination and odor buildup

Food Processing & Agricultural Hygiene:
• Sanitizes food contact surfaces, processing equipment, and conveyor belts in regulated environments
• Used for disinfecting irrigation equipment, greenhouse water systems, and harvesting tools (under strict control)
• Applied to prevent post-harvest microbial spoilage of fruits and vegetables in some jurisdictions

PRODUCT KEY FEATURES

Basic Identification Attributes

• Chemical Name: Sodium Dichloroisocyanurate
• CAS Number: 2893-78-9
• HS Code: 2933.69.90
• Molecular Formula: C₃Cl₂N₃NaO₃
• Synonyms:

SDIC
Sodium troclosene
Dichloro-s-triazinetrione sodium salt
Sodium dichloroisocyanuric acid

Physical & Chemical Properties

Physical State: Solid (available as powder, granules, or tablets)
• Color & Odor: White to off-white, faint chlorine-like odor
• Melting Point: Decomposes before melting
• Density/Specific Gravity: ~1.0–1.2 g/cm³
• Solubility:

Soluble in water (~25 g/100 mL at 25 °C)
Forms a slightly alkaline aqueous solution
• pH Level: 6.0 to 7.5 (1% solution)
• Vapor Pressure & Volatility: Not volatile
• Flash Point: Not flammable
• Autoignition Temperature: Not applicable
• Available Chlorine Content: 55–60%
• Stability in Solution: Moderately stable; decomposes in strong sunlight or heat

Safety & Hazard Attributes

Hazard Class (GHS Classification):

Acute toxicity – oral (Category 4)
Skin irritation (Category 2)
Eye irritation (Category 2A)
Aquatic toxicity – acute and chronic (Category 1)
• NFPA Ratings:
Health: 2
Flammability: 0
Reactivity: 1
• Exposure Limits:
No OSHA PEL or ACGIH TLV established
Handle with caution to avoid respiratory or dermal exposure
• Reactivity:
Releases toxic chlorine gas when mixed with acids
Reacts dangerously with ammonia, reducing agents, and organic materials

Storage & Handling Attributes

Storage Conditions:

Store in original, tightly sealed containers in a dry, cool, and well-ventilated area
Protect from direct sunlight and moisture
Keep away from combustible or incompatible materials
• Incompatible Materials:
Acids (generate chlorine gas)
Ammonia compounds
Reducing agents
Organic materials
• Container Type:
HDPE containers, lined fiber drums, moisture-resistant pouches
• Shelf Life & Expiration Date:
Stable for 3–5 years under proper conditions
Degrades slowly when exposed to humidity and heat
• Special Handling Requirements:
Avoid creating dust
Do not store near food, beverages, or feed
Use with adequate ventilation or fume extraction

Regulatory & Compliance Attributes

Regulatory Status:

Approved for potable water treatment by WHO and U.S. EPA
Registered as a disinfectant and antimicrobial agent under various national guidelines
Subject to labeling and storage regulations under transport and chemical safety standards
• Transportation Restrictions:
Not classified as a hazardous material in most forms, but regulated for bulk transport
UN Number (if applicable): 2465
• Waste Disposal Method:
Do not dispose into sewers or water bodies
Dispose of through licensed chemical waste handler
Follow local hazardous waste regulations

Environmental & Health Impact

Ecotoxicity:

Highly toxic to aquatic life at low concentrations
May disrupt aquatic ecosystems if released in large quantities
• Persistence in Environment:
Degrades into cyanuric acid and chloride ions
Breakdown accelerated by sunlight and heat
• Carcinogenicity/Mutagenicity:
Not classified as carcinogenic or mutagenic
Repeated exposure to high concentrations may cause skin or respiratory irritation
• Biodegradability:
Inorganic chlorine-based compound; not biodegradable in the traditional sense
Degradation products are generally environmentally tolerable in controlled amounts

SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):
• Wear nitrile or neoprene chemical-resistant gloves
• Use protective goggles or a face shield
• Wear lab coat or chemical-resistant clothing
• Use dust mask or respirator if working in poorly ventilated areas or when handling large volumes

Handling:
• Handle in a well-ventilated area
• Avoid inhalation of dust or fumes
• Prevent contact with eyes, skin, and clothing
• Do not mix with acids, ammonia, or other disinfectants

Storage:
• Store in original containers
• Keep tightly closed and away from direct sunlight and high humidity
• Do not store near oxidizable or flammable materials

FIRST AID MEASURES

Inhalation:
• Move to fresh air
• Administer oxygen if breathing is difficult
• Seek medical attention if symptoms persist

Skin Contact:
• Wash skin thoroughly with soap and water
• Remove and wash contaminated clothing
• Seek medical advice for persistent irritation

Eye Contact:
• Rinse cautiously with water for 15 minutes
• Remove contact lenses if present
• Seek immediate medical attention

Ingestion:
• Rinse mouth with water
• Do not induce vomiting unless advised by medical personnel
• Seek emergency medical attention immediately

FIRE FIGHTING MEASURES

Flammability:
• Non-flammable, but oxidizing (may enhance fire in presence of combustibles)

Extinguishing Media:
• Water spray
• CO₂
• Foam
• Dry chemical powder (non-combustible types only)

Hazardous Combustion Products:
• Releases toxic gases including chlorine, nitrogen oxides, and cyanuric compounds

Firefighter Protection:
• Use full-body protective suit and SCBA
• Isolate area and control runoff from firefighting