Section 1: Chemical Product and Company Identification
Product Name: Tween-80
Catalog Codes: SLP4093
TSCA: TSCA 8(b) inventory: Tween-80
CI#: Not available.
Synonym: Tween 80; Polyoxyethylene 20 sorbitan
monooleate; Polyethylene oxide sorbitan mono-oleate;
Polyoxyethylene sorbitan monooleate; Polyoxyethylene
sorbitan oleate; Sorbitan mono-9-octadecenoate
poly(oxy-1,2-ethanediyl) derivatives; Sorethytan (20)
Chemical Name: Sorbitan, monooleate polyoxyethylene
Chemical Formula: Not available.
Section 2: Composition and Information on Ingredients
Name CAS # % by Weight
Tween-80 9005-65-6 100
Toxicological Data on Ingredients: Not applicable.
Section 3: Hazards Identification
Potential Acute Health Effects: Slightly hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of
Potential Chronic Health Effects:
CARCINOGENIC EFFECTS: Not available. MUTAGENIC EFFECTS: Not available. TERATOGENIC EFFECTS: Not available.
DEVELOPMENTAL TOXICITY: Not available. Repeated or prolonged exposure is not known to aggravate medical condition.
Section 4: First Aid Measures
Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15
minutes. Cold water may be used. Get medical attention if irritation occurs.
Wash with soap and water. Cover the irritated skin with an emollient. Get medical attention if irritation develops. Cold water
may be used.
Serious Skin Contact: Not available.
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical
Serious Inhalation: Not available.
Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious
person. Loosen tight clothing such as a collar, tie, belt or waistband. Get medical attention if symptoms appear.
Serious Ingestion: Not available.
Section 5: Fire and Explosion Data
Flammability of the Product: May be combustible at high temperature.
Auto-Ignition Temperature: Not available.
Flash Points: CLOSED CUP: >148.89°C (300°F).
Flammable Limits: Not available.
Products of Combustion: Not available.
Fire Hazards in Presence of Various Substances: Slightly flammable to flammable in presence of heat.
Explosion Hazards in Presence of Various Substances:
Risks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in
presence of static discharge: Not available.
Fire Fighting Media and Instructions:
SMALL FIRE: Use DRY chemical powder. LARGE FIRE: Use water spray, fog or foam. Do not use water jet.
Special Remarks on Fire Hazards: Not available.
Special Remarks on Explosion Hazards: Not available.
Section 6: Accidental Release Measures
Dilute with water and mop up, or absorb with an inert dry material and place in an appropriate waste disposal container.
Finish cleaning by spreading water on the contaminated surface and dispose of according to local and regional authority
Absorb with an inert material and put the spilled material in an appropriate waste disposal. Finish cleaning by spreading water
on the contaminated surface and allow to evacuate through the sanitary system.
Section 7: Handling and Storage
Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the residue under a
fume hood. Ground all equipment containing material. Do not ingest. Do not breathe gas/fumes/ vapor/spray. If ingested, seek
medical advice immediately and show the container or the label. Keep away from incompatibles such as oxidizing agents.
Keep container tightly closed. Keep container in a cool, well-ventilated area. Do not store above 32.2°C (90°F). Preferably
store at temperatures between 50 deg F to 90 deg. F.
Section 8: Exposure Controls/Personal Protection
Provide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapors below their respective
threshold limit value. Ensure that eyewash stations and safety showers are proximal to the work-station location.
Personal Protection: Safety glasses. Lab coat.
Personal Protection in Case of a Large Spill:
Splash goggles. Full suit. Boots. Gloves. Suggested protective clothing might not be sufficient; consult a specialist BEFORE
handling this product.
Exposure Limits: Not available.
Section 9: Physical and Chemical Properties
Physical state and appearance: Liquid. (Oily liquid.)
Odor: fatty (Slight.)
Taste: Not available.
Molecular Weight: Not available.
Color: Clear Amber. Yellow.
pH (1% soln/water): 7 [Neutral.]
Boiling Point: >100°C (212°F)
Melting Point: -20.556°C (-5°F)
Critical Temperature: Not available.
Specific Gravity: 1.06 - 1.10 (Water = 1)
Vapor Pressure: <0.1 kPa (@ 20°C)
Vapor Density: Not available.
Volatility: Not available.
Odor Threshold: Not available.
Water/Oil Dist. Coeff.: Not available.
Ionicity (in Water): Not available.
Dispersion Properties: See solubility in water, methanol.
Easily soluble in cold water, hot water. Soluble in methanol. Soluble in Toluene, alcohol, cottonseed oil, corn oil, Ethyl Acetate.
Insoluble in mineral oil.
Section 10: Stability and Reactivity Data
Stability: The product is stable.
Instability Temperature: Not available.
Conditions of Instability: Excess heat, incompatible materials
Incompatibility with various substances: Reactive with oxidizing agents.
Corrosivity: Non-corrosive in presence of glass, of stainless steel(304), of stainless steel(316).
Special Remarks on Reactivity: Not available.
Special Remarks on Corrosivity: Not available.
Polymerization: Will not occur.
Section 11: Toxicological Information
Routes of Entry: Inhalation. Ingestion.
Toxicity to Animals: Acute oral toxicity (LD50): 25000 mg/kg [Mouse].
Chronic Effects on Humans: Not available.
Other Toxic Effects on Humans: Slightly hazardous in case of skin contact (irritant), of ingestion, of inhalation.
Special Remarks on Toxicity to Animals:
Lethal Dose/Conc 50% Kill: LD50 [Rat] - Route: Oral; Dose: 34500 ul/kg
Special Remarks on Chronic Effects on Humans:
May cause adverse reproductive effects based on animal test data. No human data found. May cause cancer based on animal
test data. No human data found. May affect genetic material (mutagenic)
Special Remarks on other Toxic Effects on Humans:
Acute Potential Health Effects: Skin: No irritation is expected, but it may cause mild/slight irritation in more sensitive
individuals. It will probably not be absorbed through the skin. Eyes: It may cause eye irritation. Inhalation: No expected to be
a health hazard. No irritation is expected to be associated with the inhalation of this material. No toxic effects are known to
be associated with the inhalation of this material. Ingestion: This material is not likely to cause irritation upon ingestion. It is
classified as "relatively harmless" by ingestion and considered to be a low ingestion hazard. Ingestion of very large doses may
cause abdominal spasms and diarrhea. Animal studies have shown it to cause cardiac changes, changes in behavior (altered
sleep time) and weight loss (upon repeated or prolonged ingestion). However, no similar human data has been reported.
Section 12: Ecological Information
Ecotoxicity: Not available.
BOD5 and COD: Not available.
Products of Biodegradation:
Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.
Toxicity of the Products of Biodegradation: Not available.
Special Remarks on the Products of Biodegradation: Not available.
Section 13: Disposal Considerations
Waste must be disposed of in accordance with federal, state and local environmental control regulations.
Section 14: Transport Information
DOT Classification: Not a DOT controlled
Identification: Not applicable.
Special Provisions for Transport: Not applicable.
Section 15: Other Regulatory Information
Federal and State Regulations: TSCA 8(b) inventory: TWEEN-80
Other Regulations: EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances.
This product is not classified according to the EU regulations. Not applicable.
Health Hazard: 1
Fire Hazard: 1
Personal Protection: a
National Fire Protection Association (
Not applicable. Lab coat. Not applicable. Safety glasses.
Section 16: Other Information
References: Not available.
Other Special Considerations: Not available.
Created: 10/10/2005 11:35 AM
Last Updated: 11/06/2008 12:00 PM