MSDS for Acid Treated Starch

Identification

Product Name: Acid Treated Starch
Synonyms: Modified Starch, Acid Hydrolyzed Starch
Recommended Use: Thickening Agent, Binder, Film Former
Supplier: Manufacturer or distributor's details required on shipping documentation
Emergency Contact: Local emergency number or supplier’s emergency line

Hazard Identification

Classification: Non-hazardous under normal conditions, but can create dust that may form combustible mixtures with air
GHS Label Elements: No pictogram required; precaution for dust formation
Hazard Statements: Dust explosion risk possible; mild irritant to eyes and respiratory tract
Precautionary Statements: Avoid generating dust—use adequate ventilation and local exhaust; wear protective equipment if exposure is likely
Other Hazards: Slippery when wet; can build up static charges

Composition / Information on Ingredients

Chemical Name: Hydrolyzed Starch
CAS Number: 9005-25-8
Concentration: >95% acid-treated starch
Impurities: Trace acid (used during processing), water, minor residual process reagents below reporting thresholds
Additives: May contain trace level processing aids, all non-hazardous based on available data

First Aid Measures

Inhalation: Move to fresh air, keep at rest, seek medical attention if irritation persists
Skin Contact: Wash skin with soap and water to remove residue, remove contaminated clothing
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present
Ingestion: Rinse mouth, drink water if the person is alert, consult doctor if symptoms develop
Notes to Physician: Treat symptomatically, no specific antidote required

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Special Hazards: Dust may form explosive mixture; burning yields carbon oxides and small amounts of other toxic products
Protective Equipment: Wear self-contained breathing apparatus and full protective gear
Advice for Firefighters: Remove containers from fire area when safe, use water to keep containers cool, avoid breathing vapors; ensure proper ventilation

Accidental Release Measures

Personal Precautions: Use protective clothing, avoid inhaling dust; prevent slip hazards
Environmental Precautions: Do not flush large quantities into drains or surface water
Methods for Cleanup: Sweep or vacuum up without creating dust, place in appropriate waste container; use explosion-proof equipment in large spills
Containment: Prevent spreading to avoid slip hazards

Handling and Storage

Safe Handling: Minimize dust generation, use grounded equipment, avoid static discharge
Safe Storage: Store in a cool, dry, well-ventilated area, away from sources of ignition
Incompatible Materials: Strong oxidizing agents; acids in concentrated form can further modify product
Storage Conditions: Keep containers tightly closed, protected from moisture, labeled properly

Exposure Controls and Personal Protection

Engineering Controls: Local exhaust recommended to minimize dust; ensure adequate ventilation
Personal Protective Equipment: Safety goggles, dust mask, gloves, protective clothing for bulk handling
Exposure Limits: Occupational exposure limits for particulates not otherwise regulated — ACGIH TLV: 10 mg/m³ (total dust)
Hygiene Measures: Wash hands after handling, do not eat, drink or smoke during use, change contaminated clothing regularly

Physical and Chemical Properties

Appearance: Fine white or off-white powder, may be granular
Odor: Odorless or slight starch smell
pH: Typically 4.0 – 7.0 in slurry
Melting Point: Decomposes before melting
Boiling Point: Not applicable
Flash Point: Not applicable
Solubility: Swells in cold water, partially soluble in hot water
Bulk Density: 0.5 – 0.7 g/cm³
Flammability: Dust is flammable at high concentrations
Explosion Limits: Lower Explosive Limit (LEL) for starch dust: 40–50 g/m³
Vapor Pressure: Not applicable
Partition Coefficient: Not available

Stability and Reactivity

Chemical Stability: Stable under normal conditions
Reactivity: Low, but dust-air mixtures can explode
Hazardous Reactions: Avoid strong oxidizers, strong acids
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, trace organic compounds on combustion
Conditions to Avoid: High heat, sparks, open flames, static discharge, incompatible chemicals, moisture

Toxicological Information

Likely Routes of Exposure: Inhalation, eye contact, skin contact, ingestion
Acute Effects: Dust may cause mild irritation to eyes, skin, and respiratory tract
Chronic Effects: No significant chronic toxicity reported
Sensitization: No data indicating sensitizing properties for humans
Carcinogenicity: Not listed by IARC, NTP, OSHA as a carcinogen
Acute Toxicity Data: LD50 (oral, rat): >5000 mg/kg
Other Health Effects: No evidence of reproductive toxicity, mutagenicity or teratogenicity

Ecological Information

Ecotoxicity: Not classified as hazardous to aquatic life
Persistence and Degradability: Readily biodegradable, breaks down in water and soil
Bioaccumulative Potential: Low, not expected to accumulate due to natural degradation
Mobility in Soil: Limited, slowly absorbed into soil, water-soluble fractions diffuse
Other Adverse Effects: No documented impacts on ecosystems at typical concentrations

Disposal Considerations

Disposal Methods: Dispose of in accordance with local, regional, and national regulations; landfill accepted, composting possible for clean uncontaminated material
Contaminated Packaging: Empty containers should be thoroughly cleaned before recycling or disposal
Precautions: Avoid disposal to sewer or natural water sources in large quantities; always minimize dust during disposal operations

Transport Information

UN Number: Not regulated as hazardous for transport
Proper Shipping Name: Not classified as dangerous goods
Transport Hazard Class: Not applicable
Packing Group: Not assigned
Special Precautions for Transport: Use sealed containers, avoid moisture absorption, secure loads to prevent movement and release

Regulatory Information

TSCA: Listed
REACH: Exempt or registered, depending on tonnage and use
OSHA: Not defined as hazardous, subject to particulate exposure limits
SARA Title III: Not listed as an extremely hazardous substance
Other Country Regulations: Complies with most international food, pharmaceutical, and technical standards, ensure local compliance as formulations may differ