MSDS of Spherical Calcium Chloride

Identification

Product Name: Spherical Calcium Chloride
Chemical Formula: CaCl₂
Synonyms: Calcium Dichloride, Anhydrous Calcium Chloride, Dihydrate Calcium Chloride
CAS Number: 10043-52-4 (anhydrous), 10035-04-8 (dihydrate)
Recommended Use: De-icing, dust control, moisture absorber, food additive, chemical production, concrete accelerator
Supplier Details: Manufacturer’s name, address, and phone number often appear on the shipping documentation for proper traceability and emergency communication
Emergency Phone Number: 24-hour emergency response number, such as the CHEMTREC or manufacturer-specific number
EINECS Number: 233-140-8
Molecular Weight: 110.98 g/mol (anhydrous), 147.01 g/mol (dihydrate)

Hazard Identification

GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Specific target organ toxicity - single exposure (Category 3)
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause respiratory irritation
Precautionary Statements: Wear protective gloves and eye protection, avoid breathing dust or mist, wash hands thoroughly after handling, use only outdoors or in a well-ventilated area
Potential Health Effects: Eye contact may lead to burning and redness, skin contact may cause dryness or burns, ingesting large amounts can upset the stomach and cause nausea, inhaling dust may irritate the respiratory tract
Pictogram: Exclamation mark symbol as per GHS labeling regulations
NFPA Ratings: Health - 2, Flammability - 0, Physical Hazard - 1, indicating moderate concern about exposure

Composition / Information on Ingredients

Chemical Name: Calcium Chloride
Common Name: Spherical Calcium Chloride
Concentration: Typically >90% by weight
Impurities: May contain trace amounts of magnesium chloride, sodium chloride, water, and insoluble residue
Ingredient List: Calcium chloride (active), possible water in hydrate forms, trace sodium chloride
Other Identifiers: EC Number: 233-140-8; UN Number: UN 1748 (anhydrous), UN 2208 (hydrated)

First Aid Measures

Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, keep rinsing, seek medical attention if irritation persists
Skin Contact: Wash with plenty of soap and water, remove contaminated clothing, continue rinsing, consult a healthcare provider if irritation continues
Inhalation: Move to fresh air, keep the person breathing normally, seek medical advice for any breathing difficulties or ongoing symptoms
Ingestion: Rinse mouth, drink several glasses of water, do not induce vomiting, get medical assistance especially if large quantities are swallowed
Information for Physicians: Symptomatic and supportive treatment is recommended, additional treatment based on the individual's response

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, CO₂, water spray, foam, as appropriate for surrounding materials
Specific Hazards: Not combustible, but high temperatures may release toxic chlorine gas or hydrogen chloride gas
Protective Equipment: Firefighters should use full protective gear and self-contained breathing apparatus if dust or decomposition products are present
Special Precautions: Avoid breathing smoke or fumes, use standard firefighting equipment for chemicals

Accidental Release Measures

Personal Precautions: Use personal protective equipment, avoid creating or inhaling dust, ventilate area
Environmental Precautions: Prevent runoff into waterways or sewers, avoid letting concentrated product reach soil or water systems
Methods for Cleanup: Sweep up material and place in suitable closed container, avoid water contact with strong concentrations, use tools that minimize dust, dispose of properly

Handling and Storage

Precautions for Safe Handling: Avoid skin and eye contact, wash thoroughly after handling, prevent dust formation, do not eat, drink, or smoke while working in contact with the substance
Safe Storage Conditions: Store in a cool, dry, and ventilated area, keep containers tightly closed, use packages designed for corrosive powders, do not store near acids or oxidizing agents
Incompatibilities: Do not mix with strong acids, avoid contact with zinc, aluminum, and strong oxidizers, keep away from moisture as product is highly hygroscopic

Exposure Controls and Personal Protection

Engineering Controls: Use local exhaust ventilation to control dust, maintain adequate ventilation in work areas
Exposure Limits: No specific OSHA or ACGIH limits for calcium chloride dust, but general particulates not otherwise classified: OSHA PEL = 15 mg/m³ (total dust), 5 mg/m³ (respirable)
Personal Protective Equipment: Safety goggles or face shield for eye protection, chemical-resistant gloves for hand protection (neoprene, PVC), protective clothing, dust mask or respirator if dust is present above recommended limits
Hygiene Measures: Change and wash contaminated clothing after work, use hand-washing facilities before eating, drinking, or smoking

Physical and Chemical Properties

Appearance: White to off-white spherical pellets or granules
Odor: Odorless
pH: 8 - 11 (in solution)
Melting Point: 772°C (anhydrous), loses water when heated
Boiling Point: Decomposes at high temperatures
Solubility: Highly soluble in water, generates heat when dissolved
Density: 2.15 g/cm³ (anhydrous)
Molecular Weight: 110.98 g/mol (anhydrous)
Vapor Pressure: Not applicable
Evaporation Rate: Not applicable
Partition Coefficient: Not available
Other Properties: Highly hygroscopic, absorbs moisture from the air, exothermic dissolution

Stability and Reactivity

Chemical Stability: Stable under normal conditions, absorbs moisture rapidly
Reactivity: Reacts exothermically with water, generates heat
Incompatible Materials: Strong acids, bases, zinc, water (in concentrated solution), oxidizing agents
Decomposition Products: Hydrogen chloride, chlorine gas under extreme heating or contact with acids
Hazardous Polymerization: Does not occur

Toxicological Information

Routes of Exposure: Eye contact, skin contact, inhalation, ingestion
Acute Effects: Eyes: may cause moderate to severe irritation. Skin: may cause irritation or burns. Inhalation: May irritate respiratory tract. Ingestion: Upset stomach, vomiting, in large amounts risk of serious effects
Chronic Effects: Prolonged contact may cause persistent dryness or irritation
LD₅₀ Oral Rat: 1000 mg/kg (approximate)
LD₅₀ Dermal Rabbit: >2000 mg/kg
Carcinogenicity: Not classified as a carcinogen by IARC, OSHA, or NTP
Other Risks: May aggravate dermatitis, asthma, or other respiratory/breathing conditions in sensitive people

Ecological Information

Ecotoxicity: Harmful to aquatic life if released in large quantities, can alter salinity or pH of surface water
Persistence and Degradability: Dissolves readily in water, breaks down to naturally-occurring ions
Bioaccumulation: Calcium and chloride do not bioaccumulate in nature
Mobility in Soil: Moves easily in moist soil, may affect soil microflora in large concentrations
Other Effects: Over-application to land or accidental release into water bodies can disrupt local species and cause excessive salinity affecting ecosystem balance

Disposal Considerations

Waste Disposal Methods: Dispose of according to local, regional, and national regulations, small quantities can be washed away with large volumes of water unless advised otherwise by local waste authorities
Contaminated Packaging: Decontaminate packaging if possible, dispose of via licensed waste handler
Environmental Precautions: Avoid release of significant quantities into waterways or drains, manage all wastes to protect water resources and soil

Transport Information

UN Number: UN 1748 (anhydrous), UN 2208 (hydrated forms)
DOT Shipping Name: Calcium Chloride
Hazard Class: Not regulated for ground or ocean freight at ordinary concentrations
Packing Group: III (if regulated)
Label Requirements: Not DOT-regulated as a hazardous material in standard packaging
Special Precautions: Protect containers from damage and moisture during transport, use approved containers
IMDG/IATA Shipping: Check carrier requirements for specific transport mode

Regulatory Information

OSHA Status: Not classified as hazardous under OSHA Hazard Communication Standard
TSCA Inventory: Listed
SARA Title III: Not subject to Section 313 reporting
Canadian DSL: Listed
REACH EU: Pre-registered
Other Local Regulations: Subject to regional chemical control regulations, maximum application concentrations may be set by environmental authorities for anti-icing or dust suppression uses
Labeling Requirements: Must follow local GHS or equivalent hazard communication systems for classification, labeling, and packaging