Calcium Octoate

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Calcium Octoate 10% is an aqueous solution containing 10% calcium octoate, a calcium salt of 2-ethylhexanoic acid (octanoic acid). It is a white to pale yellow liquid, soluble in water, known primarily as a metal carboxylate used as a drying agent and corrosion inhibitor. It functions as a calcium-based drier in coatings, paints, varnishes, and printing inks to accelerate the curing process by catalyzing the oxidation and polymerization of drying oils. Due to its stability and efficacy at low concentrations, it is widely preferred as a non-toxic alternative to traditional lead or cobalt-based driers.

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Category: Driers Tags: Alkyd resin curing accelerator, Automotive finishes, Industrial coatings, Paints and coatings drier, Plastic stabilizer

Description

Table of Contents

Calcium Octoate

Primary Uses

Coatings and Paint Industry

Used as a calcium-based drying agent (drier) in alkyd, oil-based, and other air-drying paints and varnishes.
Accelerates film formation by catalyzing oxidative cross-linking of drying oils, enhancing drying speed and surface hardness.
Acts as a safer alternative to lead and cobalt driers with reduced toxicity concerns.

Printing Inks

Incorporated into printing inks to promote quick drying and improve film durability.
Ensures faster handling and stacking time post-printing.

Adhesives and Sealants

Used as a curing accelerator in solvent-based adhesives and sealants containing drying oils or alkyd resins.

Metal Protection

Functions as a corrosion inhibitor in metal preservation formulations.

Secondary Uses

Plastics and Rubber

Sometimes used as a processing aid or stabilizer in certain plastic and rubber compounds.

Textile Industry

Utilized as a curing agent in textile printing inks and coatings.

Chemical Intermediates

Serves as a precursor or intermediate in synthesis of other metal soaps and additives.

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): Calcium 2-ethylhexanoate
Common/Trade Name: Calcium Octoate 10%
CAS Number: 19766-89-3 (calcium 2-ethylhexanoate)
HS Code: 2915.70.00
Molecular Formula: C16H30CaO4
Synonyms:
- Calcium 2-ethylhexanoate
- Calcium octanoate
- Calcium octoate solution

2. Physical & Chemical Properties

Physical State: Liquid (aqueous solution)
Color & Odor: Clear to pale yellow; mild characteristic odor
Density: Approx. 1.0 g/cm³ (varies slightly with concentration)
Solubility: Completely soluble in water
pH (10% solution): Typically 8–10 (slightly alkaline)
Stability: Stable under normal storage conditions; resistant to hydrolysis
Flash Point: Not applicable (aqueous solution)

3. Safety & Hazard Attributes

Hazard Class (GHS): Not classified as hazardous under typical handling
NFPA Ratings:
- Health: 1
- Flammability: 0
- Reactivity: 0
Exposure Limits: No specific OSHA/ACGIH limits; avoid prolonged skin contact and ingestion
Toxicity: Low toxicity; considered safer than heavy-metal driers
Reactivity: Stable; avoid strong acids or bases which may hydrolyze the salt

4. Storage & Handling Attributes

Storage Conditions: Store in tightly closed containers in a cool, dry, and well-ventilated area away from direct sunlight
Container Type: Plastic or coated metal drums compatible with aqueous alkaline solutions
Shelf Life: Typically 12–24 months if stored properly
Special Handling: Use PPE; avoid eye and skin contact; prevent environmental discharge

5. Regulatory & Compliance Attributes

FDA Status: Not typically regulated for food/pharma use; primarily industrial chemical
REACH: Registered under EU chemical regulations
Transportation: Not classified as dangerous goods under most transport regulations
Waste Disposal: Dispose according to local environmental regulations for aqueous alkaline metal salts

6. Environmental & Health Impact

Ecotoxicity: Low; readily disperses in aquatic environment, minimal bioaccumulation expected
Persistence: Biodegradable in environment
Bioaccumulation: Not expected
Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic
Biodegradability: Biodegradable under aerobic conditions

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

Personal Protective Equipment (PPE):

Gloves
Safety goggles
Protective clothing
Use respiratory protection if aerosolized

Handling Measures:

Avoid inhalation and direct skin or eye contact
Use in well-ventilated areas
Avoid contamination of watercourses and soil

Storage Measures:

Keep containers tightly closed
Store away from acids and incompatible materials
Protect from freezing and extreme heat

Hygiene Practices:

Wash hands after handling
Do not eat, drink, or smoke during handling

First Aid Measures

Inhalation: Move to fresh air; seek medical attention if symptoms develop
Skin Contact: Wash thoroughly with soap and water; remove contaminated clothing
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes; seek medical attention if irritation persists
Ingestion: Rinse mouth with water; do not induce vomiting; seek medical attention if large amounts ingested

Firefighting Measures

Fire Hazards: Not flammable
Extinguishing Media: Use water spray, foam, dry chemical, or CO₂ for surrounding fire
Special Precautions: Wear protective gear and self-contained breathing apparatus if involved in fire
Decomposition Products: May release CO₂, CO, and calcium oxides on thermal decomposition