Product Name: Morwet D-425 Powder
Product Use: Anionic surfactant for industrial applications such as dispersion and wetting
Supplier: Information available on request from manufacturer
Emergency Contact: 24-hour Emergency Service: +1-xxx-xxx-xxxx
Recommended Use Restrictions: Not for consumer use; industrial purposes only
Chemical Family: Naphthalene sulfonate, sodium salt derivative
GHS Classification: Eye irritation (Category 2A); Skin irritation (Category 2)
Label Elements: Warning symbol, exclamation mark pictogram, Signal word: Warning
Hazard Statements: Causes serious eye irritation; May cause mild skin irritation
Precautionary Statements: Wash hands thoroughly after handling; Wear protective gloves and eye protection
Potential Health Effects: Inhalation of dust can irritate respiratory tract, direct eye contact triggers redness and discomfort
Other Hazards: Dust may form explosive mixture with air in poorly ventilated spaces
Chemical Identity: Sodium salt of naphthalene sulfonic acid-formaldehyde condensate
Synonyms: Naphthalene sulfonate polymer, sodium salt
CAS Number: 9084-06-4
EC Number: Polymer; not assigned
Concentration: 98–100% by weight
Impurities contributing to hazard: Trace formaldehyde (<0.01%)
Inhalation: Move exposed individual to fresh air; support breathing if needed; get medical attention if symptoms develop
Skin Contact: Remove contaminated clothing; wash area with soap and water for several minutes; seek attention if irritation persists
Eye Contact: Flush eyes with plenty of clean water for several minutes, holding eyelids open; remove contact lenses if present and easy; continue rinsing and get medical help if discomfort continues
Ingestion: Rinse mouth thoroughly with water; never give anything by mouth to unconscious person; seek medical guidance if material is swallowed
Notes for Doctor: Treat symptomatically; no specific antidote; monitor for allergic or respiratory effects
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Media: Avoid direct water stream on product to prevent dust dispersal
Fire or Explosion Hazards: Fine dust may present explosion risk if suspended in air
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, oxides of sulfur, potentially toxic fumes
Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective clothing
Special Fire-Fighting Procedures: Use water spray to cool containers near fire; prevent fire residues from entering drains
Personal Precautions: Evacuate unnecessary personnel; use dust mask, gloves, goggles
Environmental Precautions: Prevent material from entering drains, surface water, or soil
Containment: Sweep up carefully to avoid raising dust; transfer to suitable containers for disposal
Cleaning Methods: For dry spills, use non-sparking tools and collect mechanically; for wet cleanups, use minimal water to dampen dust before collection
Reference to Other Sections: See Sections on exposure control and disposal
Precautions During Handling: Avoid creating dusty atmospheres; provide good ventilation or exhaust; use personal protection
Storage Recommendations: Store in tightly closed containers in a cool, dry, well-ventilated place away from incompatible substances like strong oxidizers
Specific Storage Hazards: Avoid open flames and sources of ignition; keep away from moisture and direct sunlight
Safe Transfer Methods: Ground all equipment to prevent static discharge
Occupational Exposure Limits: No specific limits set for product; similar dusts: inhalable dust TLV 10 mg/m³ (ACGIH)
Engineering Controls: Local exhaust ventilation; use closed handling systems where feasible
Personal Protective Equipment (PPE): Safety goggles, chemical-resistant gloves (nitrile, neoprene), dust mask or respirator (NIOSH approved for particulates), coveralls or lab coat
Hygiene Measures: Wash hands before eating, drinking, or smoking; keep work clothes separate; do not eat or drink in handling areas
Environmental Controls: Avoid release to environment; handle in accordance with local regulations
Physical State: Free-flowing powder
Color: Light brown to tan
Odor: Mild, faint aromatic
Odor Threshold: Not determined
pH (1% solution): 7–9
Melting Point/Freezing Point: Not applicable—decomposes
Boiling Point/Range: Not applicable
Flash Point: Not applicable; not flammable as bulk material
Evaporation Rate: Not applicable
Flammability: Product itself not easily flammable, but airborne dust might ignite
Vapor Pressure: Not determined
Solubility in Water: Soluble
Partition Coefficient (n-octanol/water): Not available
Decomposition Temperature: >200°C
Viscosity: Not applicable
Bulk Density: Approximately 0.5–0.7 g/cm³
Chemical Stability: Stable under recommended storage and normal conditions
Possibility of Hazardous Reactions: No dangerous reactions under normal use; fine powder may be explosive in air
Conditions to Avoid: Avoid strong heat, ignition sources, fine dust accumulation
Incompatible Materials: Strong oxidizing agents such as peroxides, nitric acid
Hazardous Decomposition Products: Thermal breakdown may produce carbon oxides, sulfur oxides, and toxic gases
Acute Toxicity: Low oral and dermal toxicity, based on similar substances; dust may cause mechanical irritation to eyes, skin, and mucous membranes
Skin Corrosion/Irritation: Prolonged contact may result in reddening or dryness
Serious Eye Damage/Irritation: Causes eye irritation with stinging, redness, and watering
Respiratory Sensitization: Inhaled dust may trigger coughing or sneezing, especially in sensitive individuals
Germ Cell Mutagenicity: No known effects
Carcinogenicity: Components not regarded as carcinogenic by NTP, IARC or OSHA
Reproductive Toxicity: No data showing reproductive toxicity
STOT (Specific Target Organ Toxicity): Exposure above dust limits may aggravate existing respiratory conditions
Other Health Effects: No evidence of chronic toxicity with normal intended use
Ecotoxicity: Expected to have low toxicity to aquatic organisms based on structure and analogous materials
Persistence and Degradability: Product is partially biodegradable, but not rapidly; long-term effects possible due to slow degradation
Bioaccumulation Potential: Low, due to high water solubility and molecular size
Mobility in Soil: Mobile in aqueous environments; may move through soil to groundwater
Other Adverse Effects: Large spills may cause foaming and oxygen depletion in water
Waste Treatment Methods: Dispose according to federal, state, and local rules; prefer incineration or landfill per environmental requirements
Contaminated Packaging: Rinse thoroughly before recycling or disposal; treat rinsate as hazardous if contaminated
Minimizing Waste: Use product completely or reuse if possible to reduce amount of waste
Special Precautions: Waste should never be flushed to drains or natural water courses
UN Number: Not classified as a dangerous good according to transport regulations
Proper Shipping Name: Not regulated
Transport Hazard Class: None
Packing Group: None
Environmental Hazards: Not environmentally hazardous for land, sea, or air transport
Special Precautions for Transport: Avoid container damage and product spillage; prevent dispersion of dust during transportation
TSCA (Toxic Substances Control Act): Listed
REACH Registration: Polymer exemption; refer to manufacturer for further documentation
OSHA Hazard Communication: Hazardous as per 29 CFR 1910.1200
SARA Title III: Not subject to reporting under Sections 302, 304, or 313
Other International Inventories: Listed or exempt (AICS, DSL, EINECS/ELINCS, ENCS, IECSC, KECL, PICCS, NZIOC)
Product Labeling: Meets GHS and US OSHA standards; all information on SDS reflects international regulatory compliance
