MSDS of Sinopec Calcium Hypochlorite

Identification

Product Name: Sinopec Calcium Hypochlorite
Chemical Name: Calcium hypochlorite
Synonyms: Bleaching powder, Hypochlorous acid, calcium salt
Recommended Use: Disinfection, water treatment, bleaching agent
Manufacturer: Sinopec Corporation
Emergency Phone: Provided by Sinopec's local distributor
CAS Number: 7778-54-3
Contact Information: Provided by Sinopec's customer support channels

Hazard Identification

GHS Classification: Oxidizing solid (Category 2), Acute toxicity oral (Category 4), Skin corrosion/irritation (Category 1B), Serious eye damage/irritation (Category 1), Hazardous to the aquatic environment (acute/chronic - Category 1)
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage, Harmful if swallowed, May cause fire or explosion because it is a strong oxidizer, Very toxic to aquatic life with long lasting effects
Pictogram(s): Flame over circle, Corrosion, Exclamation mark, Environment
Precautionary Statements: Avoid breathing dust, Wash hands thoroughly after handling, Wear protective gear (gloves, goggles, clothing), Store away from combustibles and strong acids
Other Hazards: White dust exposure irritates respiratory tract, violent reaction possible with organic materials

Composition / Information on Ingredients

Chemical Name: Calcium hypochlorite
Concentration: 65-70%
Other Components: Calcium chloride, calcium hydroxide, water (trace amounts)
Impurities: Small amounts of sodium chloride possible
Molecular Formula: Ca(OCl)2
Relevant Impurities: May include trace amounts of heavy metals, depending on manufacturing process

First Aid Measures

Inhalation: Move affected person to fresh air, keep at rest, seek medical attention if symptoms develop
Skin Contact: Remove contaminated clothing, rinse skin with running water for minimum 15 minutes, if irritation persists get medical aid
Eye Contact: Flush eyes immediately with plenty of water for at least 15 minutes, remove contact lenses, seek medical evaluation
Ingestion: Do not induce vomiting, rinse mouth with water, never give anything by mouth to an unconscious person, call a poison control center/medical professional
Most Important Symptoms: Irritation, burns, difficulty breathing, damage to respiratory or digestive tract possible
Advice for Medical Personnel: Symptomatic treatment, monitor respiratory and cardiovascular functions, provide specific antidotes only as appropriate

Fire-Fighting Measures

Suitable Extinguishing Media: Flood with large amounts of water, avoid dry chemical or foam, which may react
Unsuitable Extinguishing Media: Avoid carbon dioxide and dry powders as they increase decomposition risk
Specific Hazards: Generates toxic chlorine gas under heat or upon contact with acids, releases oxygen which supports combustion
Protective Equipment for Firefighters: Full protective clothing, self-contained breathing apparatus
Firefighting Instructions: Remove product from fire area if possible, keep adjacent containers cool by spraying with water, avoid inhaling dust or fumes

Accidental Release Measures

Personal Precautions: Wear recommended PPE (gloves, goggles, NIOSH respirator if dust is present), evacuate unnecessary personnel from area
Environmental Precautions: Prevent product from entering drains, sewers, natural waters
Cleanup Methods: Use clean, dry, non-combustible tools to collect spillage, avoid generating dust, place into clearly labeled disposal containers
Decontamination: After removal, flush spill area with large quantities of water while avoiding runoff to environment
Disposal: Dispose according to local, regional, and national regulations for hazardous oxidizing materials

Handling and Storage

Precautions for Safe Handling: Handle in well-ventilated areas, wear full protective gear, avoid contact with skin and eyes, never mix with acids or combustible substances
Storage Conditions: Store in cool, dry, well-ventilated area, away from heat, direct sunlight, moisture, and incompatible materials like organic compounds or reducing agents
Containers: Keep in tightly closed, corrosion-resistant containers
Incompatibles: Do not store with acids, ammonia, ammonium salts, urea, oxidizable materials
Other Advice: Always ensure product is handled by trained staff

Exposure Controls and Personal Protection

Exposure Limits: ACGIH TLV for chlorine: 0.5 ppm TWA; no established occupational limit for calcium hypochlorite dust
Engineering Controls: Local exhaust ventilation, general area ventilation
Personal Protective Equipment: Eye protection (chemical goggles/face shield), gloves (rubber or PVC), protective clothing, NIOSH-approved dust/mist respirator in case of airborne particles
Hygiene Measures: Wash hands before breaks and immediately after handling, remove contaminated clothing and wash prior to reuse
Environmental Controls: Use closed systems where possible, minimize airborne generation

Physical and Chemical Properties

Physical State: Solid (granular, powder form)
Color: White to grey-white
Odor: Strong chlorine-like
pH: 10.8-11.8 (1% solution)
Melting Point: Decomposes above 100°C
Density: 2.35 g/cm³
Solubility: Soluble in water, slight hydrolysis
Vapor Pressure: Not applicable, negligible at ambient temperature
Oxidizing Properties: Strong oxidizer
Other Relevant Data: Moisture sensitive, releases chlorine gas if damp

Stability and Reactivity

Chemical Stability: Stable in sealed containers, decomposes slowly in moist air
Potentially Hazardous Reactions: Exothermic reaction with acids (releases chlorine), violent reaction with organic materials and reducing agents, contact with ammonium compounds releases toxic gases
Conditions to Avoid: Heat, moisture, sunlight, contamination with dirt or organic matter
Incompatible Materials: Acids, ammonia, fats, solvents, reducing agents
Decomposition Products: Chlorine gas, oxygen, calcium compounds; inhalation hazard

Toxicological Information

Acute Toxicity: Harmful if swallowed or inhaled, can cause burns to mouth, esophagus, stomach
Skin Corrosion/Irritation: Causes severe irritation and burns
Serious Eye Damage/Irritation: Irritating to eyes, risk of permanent eye damage or blindness
Respiratory Sensitization: Dust may trigger asthma-like symptoms
Chronic Effects: Prolonged exposure may cause dermatitis, dental erosion, respiratory issues
Carcinogenicity: Not classified as carcinogenic by IARC or NTP
Symptoms: Nausea, vomiting, abdominal pain, coughing, shortness of breath, skin reddening, blistering

Ecological Information

Ecotoxicity: Highly toxic to aquatic life due to strong oxidizing nature, can severely damage ecosystems if released to water bodies
Persistence/Degradability: Readily decomposes, forming chlorides and oxygen
Bioaccumulation: Low potential for bioaccumulation, but adverse effects occur quickly
Mobility in Soil: Highly mobile in water, rapidly disperses and degrades to non-toxic forms with time
Other Effects: Alters water pH and oxygen balance, potentially dangerous even at low concentrations
Special Precautions: Any accidental release should be contained and observed for proper cleanup

Disposal Considerations

Disposal Methods: Small amounts can be dissolved in large amounts of water and neutralized (under strict local authority guidance), large quantities transported to licensed hazardous waste facility
Containers: Rinse containers thoroughly, avoid reuse for food/drink, recycle or send to approved waste handler
Environmental Hazards: Never dispose to drain, watercourse, or environment
Regulatory Requirements: Comply with national and local hazardous waste laws and guidelines
Special Instructions: Consult local environmental agency before disposal

Transport Information

UN Number: 2880
UN Proper Shipping Name: Calcium hypochlorite, hydrated or Calcium hypochlorite, dry
Transport Hazard Class: 5.1 (Oxidizing substance)
Packing Group: II
Labels Required: Oxidizer, corrosive (as specified by regulations)
Special Precautions: Keep away from foodstuffs and combustibles, secure packaging to prevent physical damage or moisture
Other Transport Information: Adhere strictly to transport regulations for hazardous oxidizers

Regulatory Information

Workplace Regulations: Subject to occupational exposure limits for chlorine and local chemical health and safety requirements
Labeling: Must display hazard pictograms and statements matching GHS classification
Environmental Protection: Strict controls for discharge to air or water
Other Relevant Laws: Covered by chemical safety, transport, and environmental protection laws in many jurisdictions
SDS Compliance: Document must be available at workplace and for all handlers under OSHA, EU REACH, and other regulations
Further Information: National and international agencies offer updated safety guidance for handling, storage, and emergency response