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Product Name: Hydroxypropyl Starch
Chemical Family: Modified starch derivative
CAS Number: 9049-76-7
Synonyms: Hydroxypropyl ether of starch
Product Use: Food additive, pharmaceutical excipient, binder, thickener
Manufacturer: Listed manufacturer address and emergency phone number
Physical State: White or off-white fine powder
Major Hazards: Dust can cause mild respiratory irritation, eye contact may result in discomfort or redness, not considered toxic under normal industrial situations
Classification: Not classified as hazardous under GHS criteria
Pictograms: None required
Signal Word: None
Precautionary Statements: Avoid breathing dust, use with adequate ventilation, wash hands after handling, avoid contact with eyes
Chemical Identity: Hydroxypropyl Starch
CAS Number: 9049-76-7
Concentration: Greater than 99%
Impurities: Native starch origin traces, residual propylene oxide may be present in small quantities (typically below regulatory limits)
General Advice: Remove contaminated clothes, seek medical attention if symptoms persist
Eye Contact: Rinse immediately with clean water for at least 15 minutes, remove contact lenses if present
Skin Contact: Wash affected area thoroughly with soap and water
Inhalation: Move to fresh air, seek medical attention if irritation or discomfort occurs
Ingestion: Rinse mouth with water, drink water if conscious, seek medical advice if large amounts are swallowed
Suitable Extinguishing Media: Water spray, dry chemical powder, carbon dioxide, foam
Specific Hazards: Dust may form explosive mixtures with air, thermal decomposition can produce carbon monoxide, carbon dioxide
Protective Equipment: Wear self-contained breathing apparatus, use protective clothing
Firefighting Instructions: Use water to cool fire-exposed containers, avoid stirring up dust clouds during response
Personal Protection: Wear suitable respirator, gloves, goggles if dust levels are high
Clean-Up Method: Sweep up material, place in approved waste container, avoid generation of airborne dust
Precautionary Measures: Remove ignition sources, ventilate area
Environmental Precautions: Prevent entry into drains, surface water, soil
Methods for Containment: Use appropriate dust suppressant if needed
Handling: Use local exhaust or general ventilation for dust control, minimize dust generation
Advice on Safe Handling: Keep container tightly closed, avoid unloading in windy conditions, use grounding for transferring bulk material
Storage Conditions: Store in cool, dry, well-ventilated place
Incompatible Materials: Strong oxidizers, strong acids
Packaging Materials: Store in original or tightly sealed containers
Occupational Exposure Limits: No specific limits set for hydroxypropyl starch, total dust (ACGIH TLV): 10 mg/m³ (inhalable); 3 mg/m³ (respirable fraction)
Engineering Controls: Mechanical ventilation or local exhaust recommended
Respiratory Protection: Use dust mask or NIOSH-approved respirator under dusty conditions
Hand Protection: Suitable gloves
Eye Protection: Safety glasses with side protection
Skin Protection: Long-sleeved work clothing
Appearance: Fine, white to off-white powder
Odor: Odorless or very faint starch odor
Odor Threshold: Not applicable
pH (1% solution): 4.5–7.0
Melting Point/Freezing Point: Decomposes before melting
Boiling Point: Not applicable (solid, polymeric nature)
Flash Point: Not applicable
Evaporation Rate: Not applicable
Flammability: Not flammable as supplied, dust clouds can be explosible
Explosive Limits: Lower explosive limit typical for similar starch: 30–60 g/m³
Vapor Pressure: Not applicable
Vapor Density: Not applicable
Solubility: Swells in cold water, dispersible
Partition Coefficient: Not determined
Autoignition Temperature: 400–510°C (approximate range)
Decomposition Temperature: Above 220°C
Viscosity: Varies by grade and concentration
Chemical Stability: Stable under normal conditions of use and storage
Reactivity: Not reactive with most substances
Hazardous Reactions: None expected during routine handling
Conditions to Avoid: High temperatures, moisture, sources of ignition, uncontrolled dust generation
Materials to Avoid: Strong oxidizing agents, acids
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, traces of aldehydes
Acute Toxicity: Low oral toxicity, not classified as hazardous
Skin Corrosion/Irritation: Not expected to cause skin irritation
Serious Eye Damage/Irritation: Dust may cause mild irritation
Respiratory Sensitization: Prolonged inhalation of dust can cause cough or mild irritation
Carcinogenicity: No components listed as carcinogens by IARC, NTP, or OSHA
Mutagenicity: No evidence or data suggest mutagenic effects
Reproductive Toxicity: No evidence in available studies
Long-Term Effects: Not studied in detail, typical for modified food starches
Ecotoxicity: Not regarded as harmful to aquatic or terrestrial life
Persistence and Degradability: Biodegradable, breaks down naturally in environment
Bioaccumulative Potential: No potential for bioaccumulation
Mobility in Soil: Low mobility, binds to soil particles
Other Adverse Effects: No data to suggest chronic environmental effects
Product Disposal: Dispose of in accordance with local, state, and federal regulations
Contaminated Packaging: Recycle or dispose of containers as non-hazardous waste
Special Precautions: Do not dump into sewers, drains, water sources
Recommended Methods: Landfill or incineration in accordance with regulatory guidelines
UN/ID Number: Not regulated
Proper Shipping Name: Not regulated as dangerous goods
Transport Hazard Class: Not applicable
Packing Group: Not assigned
Environmental Hazards: Not a marine pollutant
Transportation Precaution: Keep dry, protected from water and excessive heat
Special Transport Notes: No specific requirements beyond standard good practices
USA (OSHA): Not listed as hazardous under OSHA HCS
TSCA: Listed
Food Additive Status (FDA): Approved for intended uses
EU (REACH): Exempt as a polymer
Canada (DSL/NDSL): Listed
Other Regulations: Exempt or permitted under most local, national, and international food and chemical laws
Labeling Requirements: None mandated for non-hazardous materials such as this
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
