Chemical Name: Propylene Glycol Alginate
Other Names: 1,2-Propanediol alginate, PGA
CAS Number: 9005-37-2
Formula: Variable, as it is a propylene glycol esterified derivative of alginic acid
Intended Use: Food additive, emulsifier, thickener, stabilizer
Manufacturer Information: Company name, address, emergency contact number, email, and phone number required on the official MSDS
Hazard Class: Not classified as hazardous according to GHS standards for chemical labeling
Physical Hazards: May form dust clouds, which could result in combustible dust hazards in certain conditions
Health Hazards: Low toxicity, but dust can irritate the respiratory tract, eyes, and skin; ingestion in moderate amounts not expected to be harmful
Environmental Hazards: Low environmental impact, not expected to bioaccumulate or persist at harmful levels
Signal Word: None required
Pictograms: None
Component: Propylene Glycol Alginate
Concentration: 98-100% by weight
Impurities: Minor quantities of residual alginates and possible trace contaminants from manufacturing
Stabilizers/Preservatives: Not typically present
Inhalation: Move affected person to fresh air, seek medical attention if irritation or coughing persists
Eye Contact: Immediately flush eyes gently with plenty of water, keeping eyelids apart; obtain medical attention if irritation continues
Skin Contact: Remove contaminated clothing and wash the skin thoroughly with soap and water; seek medical help for persistent irritation
Ingestion: Rinse mouth with water, do not induce vomiting, seek medical advice if discomfort develops
Suitable Extinguishing Media: Water spray, dry chemical, foam, or carbon dioxide can all control fires involving this substance
Hazardous Combustion Products: Carbon oxides and possible formation of minor irritant gases if exposed to high temperatures
Specific Hazards: Dust may pose explosion risk when suspended in air and exposed to ignition sources
Protective Equipment: Firefighters should wear full protective gear, including self-contained breathing apparatus to guard against inhalation of fumes
Personal Protection: Wear dust masks, goggles, and gloves to prevent contact and inhalation
Environmental Precautions: Avoid releases into drains, surface water, and soil, though large impacts are unlikely
Containment and Cleaning: Vacuum or sweep up material; use methods that minimize dust generation; place in suitable, labeled containers for proper disposal; wash spill area with water
Handling: Avoid creating dust, use in ventilated workspace, wear personal protective equipment such as gloves and safety glasses
Technical Controls: Provide local exhaust ventilation near dust-generating operations
Storage Conditions: Store in cool, dry, well-ventilated area, in tightly closed containers kept away from sources of ignition and strong oxidizers; avoid moisture ingress, as product is hygroscopic
Exposure Limits: Workplace specific limits often not established; follow local dust exposure guidelines (inhalable and respirable fraction limits)
Engineering Controls: Use process enclosures, local exhaust ventilation to maintain airborne concentrations below recommended exposure limits
Personal Protective Equipment: Dust respirator (if airborne dust is generated), chemical safety goggles, protective gloves, and protective clothing as needed
Hygiene Measures: Wash hands after handling, do not eat or drink when using the material, remove contaminated clothing and wash before reuse
Appearance: White to off-white, free-flowing powder or granular mass
Odor: Odorless or faint, neutral smell
pH (1% solution): 3.5 – 5.5
Solubility: Soluble in cold water, forms viscous solutions; insoluble in most organic solvents
Melting Point: Not applicable (decomposes on heating above 150°C)
Boiling Point: Decomposes before boiling
Density: Approx. 1.7 g/cm³
Flash Point: Not flammable in typical use, may burn at very high temperature
Auto-ignition Temperature: Data not definitive, but generally above 400°C
Vapor Pressure: Not significant (non-volatile)
Partition Coefficient (n-octanol/water): Not available
Reactivity: Stable under normal ambient and anticipated storage and handling conditions
Chemical Stability: Stable at recommended temperatures, susceptible to degradation from strong acids, bases, and oxidizing agents
Hazardous Reactions: None expected during normal handling; can react with strong oxidizers
Conditions to Avoid: Excessive heat, open flames, humidity, strong oxidizers, and strong acids
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, small amounts of organic compounds during combustion or thermal decomposition
Acute Toxicity (Oral): Low toxicity in animal studies; high doses may cause gastrointestinal discomfort
Skin Irritation: Rare, but possible mild irritation in sensitive individuals
Eye Irritation: Dust may provoke temporary eye irritation
Respiratory Sensitization: Prolonged inhalation of dust can irritate the respiratory tract; asthma or allergy development is not typical
Other effects: Not considered mutagenic, carcinogenic, or reprotoxic based on available data; not known to exacerbate chronic illness
Ecotoxicity: Not expected to cause significant harm to aquatic or terrestrial life; substantial dilution occurs in the environment
Persistence and Degradability: Readily biodegradable by soil and water microorganisms
Bioaccumulation Potential: Expected to have minimal bioaccumulation due to high water solubility and chemical structure
Mobility in Soil: High mobility; product dissolves in water and disperses easily
Other Adverse Effects: No known significant impacts on ecosystems at typical release levels
Waste Disposal Methods: Dispose of in accordance with local, regional, national, and international regulations; landfill or incineration in authorized facilities
Container Disposal: Rinse containers before recycling or disposal; do not reuse empty containers for food or drink
Special Precautions: Avoid releases to water systems above permitted limits; do not dispose of in the natural environment
UN Number: Not assigned
Proper Shipping Name: Not regulated as a hazardous material for transport
Hazard Class: None
Packing Group: None
Environmental Hazards: Not marine pollutant
Transport in Bulk: Follow best practice for avoidance of spills and exposure
Regulatory Status: Approved for food use as emulsifier, thickener, stabilizer in numerous jurisdictions including USA (21 CFR 184.1660, GRAS status), EU (E405), and many other countries
Inventory Status: Listed on major chemical inventories (TSCA, EINECS/ELINCS, Australian AICS, Canadian DSL/NDSL, Japanese ENCS)
Labeling Requirements: No special labeling under GHS; keep out of reach of children for industrial/commercial users
Other Specific Regulations: None identified beyond general workplace and environmental controls for food-grade chemicals
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