Acid Oil Soya
Acid Oil Soya is a byproduct derived from the refining of soybean oil. It is a dark-colored, free fatty acid-rich liquid containing mainly oleic and linoleic acids. Acid Oil Soya is commonly used in industrial applications such as soap making, animal feed, and as a raw material in the production of biodiesel, lubricants, and other chemicals.
Acid Oil Soya
Primary Uses
- Biodiesel Production
- Used as a low-cost feedstock for biodiesel manufacturing due to its high free fatty acid (FFA) content.
- Processed via esterification/transesterification to produce fatty acid methyl esters (FAME).
- Animal Feed Supplement
- Mixed with feed pellets as an energy source for livestock (poultry, cattle, pigs).
- Provides fatty acids for improved animal growth and coat condition.
- Soap & Oleochemical Industry
- Raw material for low-grade soaps and fatty acid distillation.
- Used in lubricants, greases, and industrial surfactants.
Secondary Uses
- Agriculture
- Acts as a dust suppressant in feed mills.
- Used in organic pesticides as a carrier oil.
- Wastewater Treatment
- Helps in flotation processes to remove oil/grease from industrial effluents.
- Rubber & Plastics
- Softening agent in rubber recycling.
1. Basic Identification Attributes
- Chemical Name: Hydrolyzed Soybean Oil Fatty Acids
- Common/Trade Names:
- Soya Acid Oil
- Soybean Acid Oil
- Hydrolyzed Soy Oil
- CAS Number: 68308-53-2 (for soybean acid oil)
- HS Code: 1518.00.90 (vegetable oil acid oils)
- Molecular Formula: Variable (mixture of C16-C18 fatty acids)
- Synonyms:
- Soybean fatty acid distillate
- Acidulated soybean soapstock
- Soy oil fatty acids
2. Physical & Chemical Properties
- Physical State: Viscous liquid to semi-solid
- Color & Odor: Dark brown to black; characteristic fatty odor
- Melting Point: 20-30°C (depends on composition)
- Boiling Point: >300°C (decomposes)
- Density: 0.90-0.95 g/cm³ at 20°C
- Solubility:
- Water: Insoluble
- Organic solvents: Soluble in ethanol, ether, chloroform
- pH Level: 2-5 (acidic)
- Vapor Pressure: Negligible at 20°C
- Flash Point: >150°C (COC)
- Viscosity: 50-100 cP at 40°C
3. Safety & Hazard Attributes
- Hazard Class (GHS):
- Skin Irritation (Category 2)
- Eye Irritation (Category 2)
- NFPA Ratings:
- Health: 1
- Flammability: 1
- Reactivity: 0
- Exposure Limits:
- No specific OEL established
- General dust limit: 10 mg/m³ (total), 5 mg/m³ (respirable)
- Reactivity:
- Incompatible with strong oxidizers
- Corrosive to some metals
4. Storage & Handling Attributes
- Storage Conditions:
- Store at 15-40°C
- Keep containers tightly closed
- Protect from moisture
- Incompatible Materials:
- Strong bases
- Strong oxidizers
- Container Type:
- Carbon steel or stainless steel drums
- HDPE containers for small quantities
- Shelf Life: 12-24 months if properly stored
- Special Handling:
- Use chemical-resistant gloves (nitrile)
- Eye protection recommended
- Adequate ventilation
5. Regulatory & Compliance Attributes
- Regulatory Status:
- FDA: 21 CFR 172.860 (as fatty acids)
- EU: Approved as food additive E570
- REACH: Registered
- Hazard Symbols (GHS):
- Exclamation mark (irritant)
- Transportation Restrictions:
- Not classified as dangerous goods
- Waste Disposal Method:
- Incineration or recycling preferred
- Not RCRA hazardous
6. Environmental & Health Impact
- Ecotoxicity:
- LC50 (fish): >100 mg/L
- EC50 (daphnia): >100 mg/L
- Persistence in Environment:
- Readily biodegradable (>60% in 28 days)
- Carcinogenicity/Mutagenicity:
- Not classified (IARC, NTP, OSHA)
- Biodegradability:
- 90% in 28 days (OECD 301F)
Safety Handling Precautions
Personal Protective Equipment (PPE):
- Gloves: Nitrile or neoprene (for chemical resistance)
- Eye Protection: Safety goggles + face shield (for splash risk)
- Respiratory: N95 mask (when handling heated material)
- Body: Chemical-resistant apron + steel-toe boots
Handling & Storage:
- Store in stainless steel or HDPE containers
- Keep away from oxidizers and strong acids
- Maintain temperature below 50°C (to prevent decomposition)
- Use grounded equipment to prevent static discharge
Hygiene Measures:
- No eating/drinking in handling areas
- Wash hands thoroughly after handling
- Provide emergency eyewash station nearby
First Aid Measures
Skin Contact:
- Remove contaminated clothing
- Wash with mild soap and warm water for 15 minutes
- Apply emollient cream if irritation occurs
Eye Contact:
- Flush with lukewarm water for 15-20 minutes
- Seek medical attention if irritation persists
Ingestion:
- Rinse mouth with water
- Do NOT induce vomiting
- Seek medical advice if large amounts swallowed
Inhalation:
- Move to fresh air
- Give oxygen if breathing is difficult
Firefighting Measures
Fire Characteristics:
- Combustible liquid (flash point typically >150°C)
- Burns with thick, black smoke
- May release acrolein at high temperatures
Extinguishing Media:
- Dry chemical powder
- CO₂
- Foam
- Water spray (to cool containers)
Special Precautions:
- Wear SCBA (self-contained breathing apparatus)
- Contain runoff to prevent environmental contamination
- Cool adjacent containers with water spray
Spill Management
Small Spills:
- Contain with absorbent materials (vermiculite, sand)
- Collect in approved waste containers
Large Spills:
- Implement secondary containment
- Use oil spill booms for liquid containment
- Prevent entry into drains or watercourses
Storage & Disposal
Storage Conditions:
- Keep in cool, well-ventilated area
- Away from ignition sources
- In corrosion-resistant containers
Disposal:
- Treat as industrial waste
- Follow local waste oil regulations
- Consider recycling/reprocessing options
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