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Calcium Drier
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Calcium Drier is a metal-based drying agent primarily composed of calcium salts of fatty acids (commonly calcium octoate or calcium linoleate), widely used as a siccative in paints, varnishes, inks, and coatings. It functions as a catalyst to accelerate the oxidative cross-linking and polymerization of drying oils, leading to faster drying times and improved film hardness and durability. Calcium Driers are valued for their good compatibility with other driers, low toxicity, and efficient catalytic activity at low concentrations. They are commonly used alone or in combination with other metal driers such as cobalt or manganese driers for optimized drying performance.
Description
Primary Uses
- Paints & Coatings
- Used as a siccative agent in alkyd resin-based paints, varnishes, and enamels to speed up drying and curing.
- Enhances film formation, hardness, and gloss of the final coating.
- Works synergistically with other metallic driers like cobalt and manganese to optimize drying kinetics.
- Printing Inks
- Applied in oil-based and alkyd printing inks to improve drying rates and reduce tackiness.
- Facilitates better adhesion and faster handling in printing processes.
- Wood Finishes & Stains
- Incorporated in wood varnishes and stains to promote faster drying and durable finishes.
Secondary UsesÂ
- Industrial Applications
- Utilized in manufacturing of certain adhesives and sealants where drying oils are components.
- Used in automotive and marine coatings for improved curing.
- Art Supplies
- Added to artist oil paints to accelerate drying without affecting color quality.
PRODUCT KEY FEATURES
Basic Identification Attributes
- Chemical Name (IUPAC): Calcium octanoate (typical) or calcium salts of fatty acids
- Common/Trade Name: Calcium Drier, Calcium Octoate Drier, Calcium Drying Agent
- CAS Number: Variable, e.g., Calcium octanoate (1592-23-0)
- HS Code: 3811.90.00
- Molecular Formula: Dependent on fatty acid, e.g., C16H30CaO4 (Calcium octanoate)
- Synonyms:
- Calcium Octoate
- Calcium Fatty Acid Salt
- Calcium Drying Agent
- Calcium-based Siccative
2. Physical & Chemical Properties
- Physical State: Viscous liquid or solid (depending on specific formulation)
- Color & Odor: Pale yellow to amber; mild fatty odor
- Melting Point: Typically 140–150°C (for solid forms)
- Boiling Point: Decomposes before boiling
- Density: Approx. 1.0–1.2 g/cm³ (liquid form)
- Solubility: Insoluble in water; soluble in organic solvents and oils
- pH: Neutral to slightly alkaline
- Stability: Stable under normal storage; sensitive to moisture
3. Safety & Hazard Attributes
- Hazard Class (GHS): Not classified as hazardous; mild irritant potential
- NFPA Ratings:
- Health: 1
- Flammability: 1
- Reactivity: 0
- Exposure Limits: No specific OSHA/ACGIH limits; avoid inhalation of aerosols or dust
- Toxicity: Low acute toxicity; may cause mild skin or eye irritation
- Reactivity: Stable; avoid strong acids and oxidizers
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area away from moisture and heat
- Container Type: Sealed metal or plastic drums or containers resistant to fatty acids
- Shelf Life: Typically 1–3 years under proper storage conditions
- Special Handling: Use PPE to avoid skin and eye contact; prevent inhalation of mist or dust
5. Regulatory & Compliance Attributes
- FDA Status: Not applicable (industrial chemical)
- Transportation: Not classified as hazardous for transport
- Waste Disposal: Dispose in accordance with local environmental regulations
6. Environmental & Health Impact
- Ecotoxicity: Low environmental hazard but avoid release to waterways
- Persistence: Biodegradable under aerobic conditions
- Bioaccumulation: Not expected to bioaccumulate
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic
- Biodegradability: Readily biodegradable
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
Personal Protective Equipment (PPE):
- Gloves
- Safety goggles
- Protective clothing
Handling Measures:
- Avoid skin and eye contact
- Prevent inhalation of vapors or mist
- Work in well-ventilated area
Storage Measures:
- Keep containers tightly closed
- Protect from moisture and heat
Hygiene Practices:
- Wash hands after handling
- Do not eat, drink, or smoke when handling
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if respiratory irritation occurs
- Skin Contact: Wash with soap and water; seek medical advice if irritation develops
- Eye Contact: Rinse with plenty of water for at least 15 minutes; seek medical advice if irritation persists
- Ingestion: Rinse mouth; seek medical attention if large quantities ingested
Firefighting Measures
- Fire Hazards: Combustible; emits toxic fumes when burned
- Extinguishing Media: Use foam, dry chemical, COâ‚‚, or water spray
- Special Precautions: Firefighters should wear full protective gear and self-contained breathing apparatus (SCBA)
- Decomposition Products: May release carbon monoxide, carbon dioxide, and metal oxides under fire conditions
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