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Product Name: Lignosulfonate
Chemical Family: Lignin derivatives
Intended Use: Concrete admixture, dust suppressant, animal feed additive, binding agent for pellets, dispersant in industrial processes
Manufacturer Information: Supplied by various chemical manufacturers worldwide
CAS Number: 8061-51-6
Emergency Contact: Refer to supplier’s emergency response number
Classification: Typically classified as not hazardous under GHS standards
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Physical Hazards: May produce dust that can act as an irritant to nose and throat
Health Hazards: Extended or repeated contact may cause mild irritation to eyes and skin; ingestion may lead to nausea or stomach discomfort
Environmental Hazards: May cause deoxygenation in aquatic environments in very large exposures
Label Elements: Not a hazardous substance or mixture according to GHS
Other Hazards: Spills in large quantities may create slipping hazards on floors
Chemical Identity: Lignosulfonic acid, sodium salt
Main Components: Sodium lignosulfonate (60-95%)
Other Ingredients: Water (for liquid grade: up to 40%), minor organic and inorganic salts, trace carbohydrates
Impurities: Small amounts of reducing sugars, calcium, magnesium, potassium, sulfate, and ash as naturally derived residues
Inhalation: Move individual to fresh air immediately; if breathing is uncomfortable, seek medical attention
Skin Contact: Wash affected area thoroughly with soap and water; remove contaminated clothing and launder before reuse
Eye Contact: Flush eyes with plenty of water for at least 15 minutes, keeping eyelids apart; consult physician if irritation continues
Ingestion: Rinse mouth; do not induce vomiting; drink water to dilute; seek medical advice if feeling unwell
Most Important Symptoms: Eye and respiratory irritation, gastrointestinal discomfort
Notes for Medical Personnel: Symptomatic care; product has low toxicity
Extinguishing Media: Foam, dry powder, carbon dioxide, water spray
Unsuitable Media: None known
Specific Hazards: Product dust in air is combustible; may emit carbon oxides and sulfur oxides if involved in fire
Firefighter Protection: Wear standard firefighting gear including self-contained breathing apparatus and chemical resistant gloves
Special Procedures: Cool exposed containers with water spray to prevent rupture
Personal Precautions: Minimize dust generation; ventilate area; use protective equipment to prevent skin and eye contact
Emergency Procedures: Isolate spill area and keep unnecessary personnel away
Environmental Precautions: Prevent large releases from entering waterways; notify authorities in case of major discharge
Methods for Clean-Up: Absorb with inert material like sand, sweep up and transfer to suitable waste container; wash spill site with water after cleanup
Handling: Avoid breathing dusts and splashes; use only in well-ventilated areas; wash hands after use; keep containers tightly closed
Hygiene Practices: Avoid eating, drinking, or smoking in work area; wash thoroughly after handling
Storage Conditions: Store in cool, dry, well-ventilated place; protect from moisture, heat, and incompatible substances; avoid freezing of liquid grades
Incompatibilities: Strong oxidizing agents
Packaging Materials: Use containers or bags made of materials resistant to hygroscopic substances
Exposure Limits: No established occupational exposure limits; treat as nuisance dust (OSHA PEL for particulates not otherwise regulated: 15 mg/m³ total dust)
Engineering Controls: Use local exhaust or general dilution ventilation to control airborne dust
Personal Protection: Wear safety goggles and chemical-resistant gloves; for dust-generating work, use NIOSH-approved dust mask or respirator; use protective clothing for large-scale or high-frequency handling
Environmental Controls: Capture and filter dust at source; prevent runoff into drains or natural water bodies
Appearance: Brownish-yellow to dark brown powder or liquid
Odor: Mild, earthy odor
Odor Threshold: Not established
pH: Typically 4-7 (10% solution)
Melting Point/Freezing Point: Not applicable for solid product
Boiling Point/Range: >100°C for aqueous solutions
Flash Point: Not flammable in solution; dust clouds could ignite if exposed to spark
Evaporation Rate: Not established
Flammability: Dust may form combustible mixture in air
Upper/Lower Explosion Limits: Not determined
Vapor Pressure: Not applicable
Solubility: Easily soluble in water
Partition Coefficient (n-octanol/water): Not determined
Auto-Ignition Temperature: Not established
Decomposition Temperature: >200°C; can release SOx, COx
Viscosity: Depends on concentration for solutions
Bulk Density: 0.6-0.8 g/cm³ (powder)
Molecular Weight: 20,000–50,000 Da (average, varies by source)
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: Low chemical reactivity; may react with strong oxidizers to produce heat and gases
Hazardous Reactions: None known in normal use
Conditions to Avoid: Excessive heat, open flames, direct sunlight, moisture for powders
Hazardous Decomposition: May release carbon oxides, sulfur oxides, or irritant vapors above 200°C
Polymerization: Will not occur
Likely Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Low; LD50 (rat, oral): >5,000 mg/kg
Skin Corrosion/Irritation: Mild irritant, especially after repeated or prolonged exposure
Serious Eye Damage/Irritation: May cause temporary discomfort
Respiratory Sensitization: Extended inhalation of dust may irritate nose, throat, and respiratory system
Skin Sensitization: Not considered a sensitizer
Germ Cell Mutagenicity: No evidence of mutagenic effects
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Reproductive Toxicity: Not known to cause reproductive harm
STOT – Single Exposure: Not classified
STOT – Repeated Exposure: Not classified
Aspiration Hazard: Not known to present an aspiration hazard
Toxicity to Aquatic Organisms: LC50 (fish, 96h): >1,000 mg/L; some formulations may lower dissolved oxygen if large spills reach bodies of water
Persistence and Degradability: Biodegradable over time; micro-organisms in soil and water can break it down
Bioaccumulation: Low potential for bioaccumulation
Mobility in Soil: Moderately mobile; high solubility in water may facilitate movement through soil
Other Adverse Effects: Can increase biological oxygen demand in water; may cause temporary foaming or coloration in streams after discharge
Waste Treatment Methods: Dispose in accordance with local, regional, and national regulations
Product Disposal: Small quantities can usually be washed to drain with plenty of water; large volumes should be collected for landfilling or suitable incineration
Contaminated Packaging: Clean completely before recycling or disposal; punctured or ripped bags should be handled as solid waste
Special Precautions: Prevent product from entering waterways untreated
UN Number: Not regulated as hazardous
UN Proper Shipping Name: Lignosulfonate
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Environmental Hazards: Not classified as marine pollutant
Special Precautions for Users: Secure loads to avoid spills; prevent release during transit
Transport in Bulk: Check individual shipment requirements, usually not regulated
Global Inventory Listings: Listed on TSCA (USA), EINECS/ELINCS (EU), DSL/NDSL (Canada), AICS (Australia), ENCS (Japan)
Label Requirements: No special labeling required for typical use under GHS
SARA 313: Not a listed material
OSHA Status: Not a hazardous chemical under OSHA regulations
California Proposition 65: Does not contain chemicals known to the state of California to cause cancer or reproductive toxicity
REACH Status: Exempted or listed for registered uses
Other National or Regional Regulations: Check local regulations for use and emissions if product is managed in bulk
