MSDS Details for Calcium Chloride Powder

Identification

Product Name: Calcium Chloride Powder
CAS Number: 10043-52-4
Synonyms: Calcium dichloride, Dowflake, Halite
Recommended Use: De-icing roads, desiccant, food additive, concrete accelerator, industrial processing
Supplier Details: Supplier name, address, phone contact, and emergency contact info should appear here for traceability and accountability.

Hazard Identification

GHS Classification: Eye irritation Category 2A, Skin irritation Category 2
Signal Word: Warning
Hazard Statements: May cause serious eye irritation, may irritate skin, harmful if swallowed in large quantities
Pictograms: Exclamation mark long used for irritants and acute toxicity
Precautionary Statements: Wear protective gear, avoid dust inhalation, flush thoroughly if contact occurs, keep out of children’s reach
Other Hazards: Hygroscopic powder, absorbs moisture from the air, can cause slippery surfaces.

Composition / Information on Ingredients

Chemical Identity: Calcium Chloride
Concentration: 95% minimum active CaCl2
Other Components: Trace minerals or water of crystallization may be present, depending on manufacturing process
Impurities: No significant hazardous impurities under typical use; food grade material has stricter purity requirements.

First Aid Measures

Eyes: Immediately flush with clean water for at least 15 minutes; seek medical attention if irritation persists
Skin: Remove contaminated clothing, wash skin thoroughly with soap and water
Inhalation: Move to fresh air, get medical help if breathing feels difficult
Ingestion: Rinse mouth; do not induce vomiting, drink water, seek medical attention for large ingestions
Advice for Medical Professionals: Symptomatic treatment only; monitor electrolyte balance due to possible hypercalcemia if large amounts swallowed.

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, foam, dry chemical, or carbon dioxide
Hazardous Combustion Products: Releases hydrogen chloride or chlorine gas if in contact with strong acids or at very high temperatures
Special Fire Fighting Procedures: Wear self-contained breathing equipment, full protective gear
Unusual Fire and Explosion Hazards: Product itself will not burn, but dust may contribute to slipping hazard in water runoff.

Accidental Release Measures

Personal Precautions: Wear gloves, dust mask or respirator, goggles; avoid skin and eye contact, avoid breathing dust
Environmental Precautions: Prevent runoff into surface waters, as high concentrations may harm aquatic life
Methods for Cleaning Up: Sweep or scoop up dry powder; avoid dust generation; place in clearly labeled container for recovery or disposal; wash area with water, collect washings in appropriate containers
Spill Response: For large spills, isolate area and contact appropriate emergency services for additional support.

Handling and Storage

Handling: Always use proper protective equipment; avoid generating dust; avoid moisture exposure, as powder is highly hygroscopic; practice good hygiene by washing hands after use and before eating
Storage: Keep in tightly closed containers, stored in a dry, cool, and well-ventilated area; separate from incompatible materials such as strong acids; store away from children and pets; inspect containers routinely for leaks or moisture
Other Notes: Storage areas should have non-slip flooring due to the risk of moisture absorption and surface slickness.

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established OSHA PEL or ACGIH TLV, but recommended to minimize dust exposure
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels low
Personal Protective Equipment (PPE): Safety goggles, protective gloves, dust mask or respirator if dust risk is present; in high-dust or large-scale settings, wear long-sleeved clothing
Hygiene Practices: Wash hands thoroughly after handling, do not eat or smoke around the material, change out of contaminated clothing promptly.

Physical and Chemical Properties

Appearance: White crystalline powder or granular solid
Odor: Odorless
Odor Threshold: Not applicable
pH (aqueous solution): 8-10 (10% solution)
Melting Point / Freezing Point: 772°C (1422°F)
Boiling Point: Decomposes before boiling
Flash Point: Not flammable
Evaporation Rate: Not applicable
Solubility: Highly soluble in water, moderate in alcohol
Density: 2.15 g/cm³
Vapor Pressure: Not applicable
Other Properties: Strongly hygroscopic, can absorb water to form solutions or a wet mass.

Stability and Reactivity

Reactivity: Reacts with water with heat generation; absorbs moisture strongly
Chemical Stability: Stable under normal temperatures and pressures; exposure to air leads to gradual hydration
Conditions to Avoid: Humid conditions, contact with strong acids releases corrosive gas
Incompatible Materials: Strong acids, borax, zinc
Hazardous Decomposition Products: Hydrogen chloride, chlorine
Polymerization: Will not occur.

Toxicological Information

Likely Routes of Exposure: Inhalation, skin absorption, eye contact, ingestion
Acute Effects: Eye, skin, and respiratory irritation possible; ingestion can upset stomach, more serious cases lead to vomiting and hypercalcemia
Chronic Effects: Repeated skin contact may dry or crack skin
Toxicity Data: Oral LD50 (rat): 1000 mg/kg (as anhydrous), generally low toxicity; irritation considered more significant than systemic toxicity
Carcinogenic Status: Not listed by IARC, NTP, OSHA
Sensitization: Not known to cause allergic reactions
Medical Conditions Aggravated: May aggravate existing respiratory conditions.

Ecological Information

Environmental Impact: Moderately ecotoxic to aquatic life at high concentrations, can cause local plant damage by dehydration, raises soil and water salinity
Persistence and Degradability: Dissociates and dilutes in environment, but excessive runoff should be avoided
Bioaccumulative Potential: No significant bioaccumulation expected
Mobility in Soil: High; readily dissolves and moves with water
Other Effects: May contribute to temporary increase in chloride ion content in receiving waters.

Disposal Considerations

Disposal Methods: Dispose in accordance with all local, state, and federal regulations; unused quantities can be landfilled if properly diluted; avoid direct discharge into sewers or natural waterways
Contaminated Packaging: Empty bags and containers should be rinsed, then recycled or discarded following regulations
Recycling Options: Possible under suitable industrial recycling programs
Special Precautions: Prevent spread of powder and dust during handling.

Transport Information

UN Number: Not regulated as a hazardous material for ground, sea, or air transport
Proper Shipping Name: Calcium chloride
Transport Hazard Class: Not classified
Packing Group: Not applicable
Special Precautions: Keep packages dry, clearly labeled, and upright during transit to prevent leaks and moisture absorption
Environmental Hazards: Avoid large spills during transport in sensitive areas, like near waterways.

Regulatory Information

OSHA: Not considered hazardous under OSHA Hazard Communication Standard; irritation hazard drives labeling
TSCA: Listed in US Toxic Substances Control Act inventory
SARA Title III: No significant reporting requirements under SARA 302/304/313
Other Regulations: Meets FCC (Food Chemicals Codex) and USP criteria for specialized uses; REACH registered in Europe; not subject to Canadian WHMIS hazard categories
Labeling Requirements: Signal word, hazard pictograms, hazard and precautionary statements, supplier information
Other Comments: Product use in food and pharmaceutical industries requires compliance with relevant standards for purity and labeling; workplace regulations emphasize personal safety and environmental awareness.