MSDS: Flame Retardant Exolit AP750

1. Identification

Product Name: Exolit AP750
Synonyms: Ammonium Polyphosphate, APP
Chemical Family: Inorganic Phosphate Compounds
Manufacturer: Clariant International Ltd.
Recommended Use: Flame retardant for plastics, coatings, construction materials, adhesives
Contact Details: Emergency contact phone numbers listed on packaging and Clariant website

2. Hazard Identification

Classification (GHS): Not classified as hazardous under GHS criteria
Label Elements: No pictogram or signal word required
Physical Hazards: Dust particles possible during handling
Health Hazards: Inhalation of dust can irritate respiratory system; prolonged skin contact may cause dryness
Environmental Hazards: Product is persistent in soil and water if released in large quantities
Precautionary Statements: Use adequate ventilation; avoid creating dust; wear personal protective equipment

3. Composition / Information on Ingredients

Chemical Name: Ammonium Polyphosphate
CAS Number: 68333-79-9
Concentration: ≥99%
Impurities: Residual moisture possible, typically below 0.5%
Other Components: Traces of orthophosphates and ammonium compounds detected in some batches

4. First Aid Measures

Inhalation: Move person into fresh air, loosen tight clothing, seek medical help for breathing difficulties
Skin Contact: Wash skin thoroughly with soap and water, remove contaminated clothing, apply lotion for dryness
Eye Contact: Rinse eyes with running water for several minutes, seek medical advice if irritation persists
Ingestion: Rinse mouth with water, avoid vomiting unless instructed by medical personnel, call a doctor if large amount swallowed

5. Fire-Fighting Measures

Flammability: Product itself is not flammable but can decompose at high temperatures releasing ammonia and phosphorus oxides
Suitable Extinguishing Agents: Water spray, dry chemical powder, foam, carbon dioxide
Unsuitable Extinguishing Media: None known for small to medium fires
Firefighter Protection: Use self-contained breathing apparatus, avoid inhaling gases or dust
Special Hazards: Thermal decomposition can produce hazardous fumes, including ammonia and acidic phosphorus gases

6. Accidental Release Measures

Personal Precautions: Wear dust mask, protective gloves, safety goggles, wash hands after handling
Environmental Precautions: Prevent from entering drains, surface water, or soil, sweep up spillage quickly
Cleanup Methods: Sweep or vacuum spilled material, place in suitable containers for disposal, use wet methods to reduce dust
Accidental Release Response Team: Use trained personnel with suitable PPE for large spills

7. Handling and Storage

Handling: Minimize dust generation, keep containers tightly closed, use only with adequate ventilation, keep away from food and drink
Storage Conditions: Store in dry, cool, well-ventilated areas, prefer sealed original packaging, shield from moisture and incompatible materials (acids, bases)
Incompatible Materials: Strong acids and bases break down the product, generating ammonia and other compounds
Storage Life: Maintains stability under recommended conditions for at least 24 months

8. Exposure Controls and Personal Protection

Occupational Exposure Limit: No established national limits, observe general dust threshold values (e.g., 10 mg/m³ for total dust)
Engineering Controls: Provide local exhaust or general room ventilation to minimize airborne dust
Personal Protection: Wear safety glasses, protective gloves, dust mask or N95 respirator, protective clothing if repeated exposure expected
Hygiene Measures: Wash hands after use, do not eat, drink, or smoke in working area, launder contaminated clothing

9. Physical and Chemical Properties

Appearance: White, free-flowing powder
Odor: Odorless or faint ammoniacal smell on close inspection
pH (10% suspension): 5.5–7.5
Melting Point/Decomposition: >240°C (Decomposes)
Boiling Point: Not applicable (decomposes before boiling)
Solubility in Water: Slightly soluble (approx. 1-2 g/L at 20°C)
Bulk Density: 0.7–0.9 g/cm³
Vapor Pressure: Not applicable
Flash Point: Not applicable
Explosive Properties: Not explosive under standard conditions

10. Stability and Reactivity

Stability: Chemically stable under normal temperatures and pressures
Conditions to Avoid: Avoid high humidity, submersion in water, exposure to strong acids or bases
Thermal Decomposition: Releases ammonia and phosphorus oxides above 240°C
Incompatible Materials: Strong oxidizers, acids, alkalis
Hazardous Polymerization: Does not occur under normal conditions

11. Toxicological Information

Acute Toxicity (Oral): LD50 (rat) >5,000 mg/kg (essentially non-toxic)
Acute Toxicity (Dermal): LD50 (rat) >4,000 mg/kg
Inhalation: Dust may cause respiratory irritation, coughing, sneezing
Skin/Eye Irritation: May cause mild, temporary irritation
Sensitization: No known sensitizing effects
Chronic Effects: No chronic toxicity identified for ammonium polyphosphate
Mutagenicity/Carcinogenicity: Not classified as mutagenic or carcinogenic under current data

12. Ecological Information

Aquatic Toxicity: LC50 (Fish, 96h) >100 mg/L (low toxicity)
Persistence/Degradability: Not readily biodegradable, persists in soil and sediment
Bioaccumulation: No significant bioaccumulative potential
Mobility in Soil: Moderate mobility in soil when dissolved
Additional Notes: High concentrations may promote algal growth and oxygen depletion in water systems

13. Disposal Considerations

Recommended Disposal Methods: Dispose as non-hazardous industrial waste in accordance with national and local regulations, use landfill or incineration suitable for inorganic compounds
Contaminated Packaging: Triple rinse containers and send for recycling or disposal, remove product residue before disposal
Special Precautions: Avoid release to water bodies and public sewage systems
Waste Codes: Check with local authorities for appropriate waste classification

14. Transport Information

UN Number: Not classified as hazardous for transport
Transport Hazard Class: Not regulated
Packing Group: Not assigned
Labeling Requirements: None under standard transportation (ADR/RID, IMDG, IATA)
Special Transport Notes: Protect against moisture, use sealed containers, minimize dust release during handling and loading

15. Regulatory Information

Inventory Listings: Listed in TSCA (USA), EINECS/ELINCS (EU), DSL (Canada), AICS (Australia)
Regulatory Status: Not subject to chemical-specific regulations or restrictions
GHS Classification: Non-hazardous
EU Directives: Not covered by REACH restrictions
SARA 313 (USA): Not listed
Other Requirements: Employers must provide safety training, maintain proper labeling, and document exposure as per workplace requirements