Carboxymethylcellulose Sodium

Sodium Carboxymethyl Cellulose – Safety Information

Toxicological Profile

• LD₅₀ (oral, rat): >27,000 mg/kg indicating low acute toxicity
• Generally non-irritating; mild mechanical irritation possible to eyes or skin in powder form
• Fine dust may cause mild respiratory irritation if inhaled
• Large oral doses may cause transient gastrointestinal discomfort

First Aid Measures

• Inhalation: Move to fresh air and seek medical attention if irritation persists
• Skin contact: Wash with soap and water and remove contaminated clothing
• Eye contact: Flush with water for at least 15 minutes
• Ingestion: Rinse mouth and drink water; seek medical advice for large quantities

Handling & Precautions

• Avoid generating airborne dust
• Use local exhaust ventilation or work in well-ventilated areas
• Wear PPE such as gloves, goggles, dust mask, and lab coat
• Prevent contact with moisture to avoid caking

Fire & Explosion Data

• Non-flammable under normal conditions
• May decompose at high temperatures releasing CO and CO₂
• Use water spray, foam, dry chemical, or CO₂ for fire control
• Airborne dust may pose a mild explosion hazard in confined spaces

Storage & Stability

• Store in a cool, dry, well-ventilated location
• Keep container tightly sealed to avoid moisture absorption
• Avoid contact with strong oxidizing agents and acids
• Stable under recommended storage conditions with typical shelf life of 2–3 years