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  • Triisobutyl phosphate
  • Isobutanol
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Triisobutyl phosphate is soluble in a variety of organic solvents, insoluble in water, and has a wide range of applications. Due to its low surface tension, it is difficult to dissolve in water and can be used as an industrial defoamer to Suppress foams, The membrane is in an unstable state and quickly defoams.


Material Safety Data Sheet

1 - Product and Company Information

Product Name:             Triisobutyl phosphate

Formula                           C12H27O4P
Molecular Weight             266.31
Synonyms                    Isobutyl phosphate ;

                                    Phosphoric acid triisobutyl ester;

                                    Phosphoric acid tris-(2-methylpropyl)ester

Company:                    NINGBO LUCKY CHEMICAL INDUSTRY CO.,LTD
Address:                      Nanpu Road, Petrochemical Economic and technological Development Zone of Ningbo,

                                    zhejiang, China.
Phone:                         86-574-87849999-893
Fax:                              86-574-87858833-893
E-mail:                         zxl@lfcc.com.cn

2 - Hazards Identification

Emergency overview
      Colorless to pale yellow transparent liquid with characteristic product odor.Flammable, vapor is heavier than air and extends horizontally.When heated strongly, the vapor and air form an explosive mixture.During combustion, it decomposes to form a toxic haze of phosphorous oxides.React with oxidizer and alkali.Erosion of certain plastics, rubber and coatings.Can cause skin allergic reactions .It has a mild inhibitory effect on cholinesterase in human plasma .It irritates the respiratory tract.This substance is not classified as dangerous according to Directive 67/548/EEC.

Skin sensitization:Class 1
      Hazard statement: May cause allergic skin reactions.

3 - Composition/Information on Ingredients





HS Code












4 - First Aid Measures

      Quickly get off the scene and into the fresh air.Keep warm and rest, keep respiratory tract unobstructed, give oxygen when breathing is difficult, give artificial respiration or cardiopulmonary resuscitation when breathing is irregular or stop breathing, and seek medical advice.If unconscious, loosen tight clothing such as neckline, tie, belt or belt in place to keep the airway open and give immediate medical attention.


      Remove contaminated clothing immediately and rinse skin with plenty of soapy water and water.Rinse immediately with peg 400 and rinse with plenty of soapy water and water for better results.Rinse continuously for at least 10 minutes.Wash clothes and shoes thoroughly before reuse.

      lift the eyelid immediately and flush with plenty of flowing water or normal saline for at least 10min.If wearing contact lenses and can be easily removed, remove contact lenses.If irritation occurs, seek medical attention.

      Rinse mouth thoroughly with water, transfer the patient to fresh air, keep warm and quiet.If swallowed, give one or two glasses of water when awake.Stopping nausea and vomiting can be dangerous.Don't induce vomiting.If you have vomited, keep your head down to make sure the vomit does not enter your lungs.Go to a doctor.Do not feed anything to unconscious patients.Loosen tight clothing such as neckline, tie, belt or belt in place, keep the airway open and give immediate medical attention.

5 - Fire Fighting Measures

      Suitable: Water spray. Carbon dioxide, dry chemical powder, or appropriate foam.

      Avoid using high pressure direct running water. Because the liquid density is lighter than water and is insoluble in water, direct running water may cause the flammable liquid to splash and spread the fire, or cause the liquid to float on the water and expand with the water to spread the fire.

      Combustible: Its vapor is heavier than air and extends horizontally, accumulating in low places.
      Strong heating: Vapor and air can form explosive mixtures.
      In case of fire, carbon monoxide, carbon dioxide, phosphoalkane and highly toxic phosphorus oxide smoke can be produced by heated combustion.In a fire, there is a risk of cracking and explosion due to increased pressure in the container.

Fire precautions and protective measures
      Isolate the scene of the accident and keep out irrelevant personnel.
      Firefighters wear self-contained breathing apparatus and appropriate protective clothing to fight the fire upwind.Do not participate in rescue without proper training or personal protective measures.
      Avoid breathing in steam and smoke.Avoid contact with skin and keep at a distance.Move the container as far as possible from the fire site to a safe opening.
      Spray water to cool containers in the fire until the end of the fire.Inhibit the diffusion of gases, vapors and smoke with foggy water.
      Containers in a fire must be evacuated immediately if they are discolored or sound from a safety relief device.The water after extinguishing the fire contains escaping steam to prevent the fire water from entering the drainage ditch, ground or underground water.According to a
      Disposal of hazards to prevent environmental pollution.

6 - Accidental Release Measures

Personnel protection measures, protective equipment and emergency response procedures
      Do not participate in rescue without proper training or personal protective measures.
      It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus,

protective clothing and rubber gloves.
      Emergency isolation, rapid evacuation of the spill contaminated area personnel to the safety zone, strictly restricted access.According to the influence area of liquid flow and vapor diffusion, the warning area shall be defined, and non-emergency personnel shall be evacuated from the crosswinds and upwinds to the safety zone.When evacuating non-emergency personnel, wear a filter gas mask, or cover your mouth and nose with a wet towel or other protective articles to prevent inhalation of vapor or smoke.
      Take the appropriate measures to cut off the leakage source as far as possible under the condition of ensuring safety according to the actual situation on site.Eliminate all ignition sources.

      Do not touch or cross the spill.
      Avoid contact with substances, inhalation of their vapor or smoke.The enclosed area ensures that fresh air is provided.

Environmental protection measures
      Take in spills to avoid polluting the environment.Prevent spills from entering soil, water, or drains.If enviromental pollution has been caused, notify the environmental protection department.

Collection and removal methods of chemical spills and disposal materials used

      Small amount of leakage: mixed with sand, diatomite, dry lime or soda ash, stored in a special sealed container, transferred to a safe place, and then to a qualified waste disposal site.No flushing into sewers.The contaminated ground shall be cleaned with a warm 3-5% sodium carbonate solution, which shall be discharged into the wastewater treatment system or collected and transported to a qualified waste treatment site for disposal.
      Large amount of leakage: Cut off the drain valve to prevent leakage into the channel or confined space. Build an embankment or dig a hole to take in, have an emergency leakage collection tank into the emergency leakage collection tank, and then use the pump to transfer to the tank car or special collector, recovery or transport to the waste disposal site for disposal. Cleaning of contaminated ground is same as small leakage.

Preventive measures to prevent the occurrence of secondary hazards

      Open fire is strictly prohibited in the leaking area.Increase ventilation.Prevent leakage into the environment.Prevent secondary contamination caused by the dumping of leaking containers.

7 - Handling and Storage

      Operators must undergo professional training and strictly follow the operating procedures.
      Keep the equipment closed and give full or partial ventilation to the exposed area as necessary.Wear proper protective equipment to avoid contact with skin and eyes.
      Prevent vapor leakage into workplace air and avoid formation of aerosols and light fog.Do not breathe in vapor or smoke.
      If respiratory hazards occur during operation, wear a protective mask.Avoid contact with oxidants, acids and bases.
      Handling should be handled lightly to prevent damage to packaging and containers.
      Wash your face and hands after work. Do not eat, drink or smoke in the workplace.

      After use, the container shall be kept sealed and stored in the original container or in the container made of approved compatible materials equipped with the corresponding types and quantities of fire fighting equipment and leakage emergency treatment equipment.
      Store the contaminated clothes separately and use them after washing.Maintain good hygiene.

      Store according to local regulations.Store in a cool, ventilated warehouse with no drain pipes or sewers. Keep away from incompatible materials, food and beverages.
      Keep container dry to avoid sun and rain.
      Keep away from fire and heat.Storage temperature should not exceed 70℃.Separate from oxidizer, acid and alkali, avoid mixed storage.
      Containers that have been opened must be sealed and kept upright to prevent leakage.
      Equipped with the corresponding types and quantities of fire equipment, leakage emergency treatment equipment and appropriate shelter materials.Use stainless steel storage tank, galvanized iron drum, high pressure polyethylene plastic drum, glass packaging
      Do not use PVC plastic drums.

Additional notes
      An empty container may leave harmful residue.No matter whether it is cleaned or not, it is prohibited to be used for packaging edible products

8 - Exposure Controls / Personal Protection

      Closed operation during production to enhance ventilation.As mechanized and automated as possible.Provide safe bath and eye washing equipment.

Individual protective equipment

      Respiratory protection:
      If there is steam/smoke, you must wear a self-suction filter gas mask (full cover).Scba should be worn during emergency rescue or evacuation.

      Hand protection
      Full contact: wear butyl rubber gloves.Thickness: 0.7mm, penetration time: >480min.
      Splash contact: fluororubber gloves.Thickness: 0.7mm, penetration time: >, 30min.

      Eye protection
      Wear chemical safety goggles.


      Skin and body protection
      The workplace should choose specific protective clothing based on the number and concentration of operations.The grounding resistance of the protective clothing shall be determined with the supplier.

9 - Physical and Chemical Properties

Appearance and Physical State: Colorless liquid with characteristic product odor
PH value: data not available as there is no ionic features.

Melting point: -60℃
Boiling point: 264℃/101.3kPa;26  ℃ / 150 hpa
Flash point: 132.5℃/ closed cup Explosion limit: no data available
Vapor pressure: 0.002hPa/20℃, 0.004hPa/25℃, 0.05hPa/50℃;0.2 kPa/103  ℃
Vapor density: no data available
Relative density (water =1) : 0.9661/20℃ 

Solubility in water: 0.265g/L/25℃
Soluble in alcohol, ether and other organic solvents.

Logarithm of n-octanol/water distribution coefficient: 3.72/25℃ 

Spontaneous combustion temperature: 428℃
Decomposition temperature: 272℃ 

Dynamic viscosity: 5mPa*s/20℃
Surface tension: 33mN/m/20℃/ concentration 90%

Flammability (solid, gas) : not applicable.

10 - Stability and Reactivity

      Stable storage under normal temperature and pressure.Stable at normal ambient temperature.

Risk response
      Strong heating within 15K below the flash point temperature is dangerous.An explosive mixture is formed when heated strongly with air.React with strong oxidizer and base.Reacts with hot water to produce corrosive phosphoric acid and isobutanol.
Avoid contact conditions

     Strong heat.

Prohibited items
     Strong oxidizer, base.

Dangerous breakdown products

     Under normal storage and use conditions, no harmful decomposition products are produced.Phosphorus oxides and carbon oxides are produced by
decomposition during fire

11 - Toxicological Information

LD50: > 5000mg/kg (rat oral)
LD50: > 5000mg/kg (rabbit percutaneous) LC50: > 5.140mg/l/4h (smoke inhalation in rats)

12 - Ecological Information

Ecological toxicity:
      Acute toxicity of fish: LC50:23mg/l/96h

      NOEC: 9.4mg/l96h
      Acute crustacean toxicity: ec50:11 mg/l/48h

      Acute toxicity of aquatic plants: ec50:30mg /l/96h

      Microbial toxicity: 28 EC50:440 mg/l/d

Durability and degradability:
      Photodegradation: reaction with OH radicals, half-life

      Hydrolysis: related to pH.Half-life t1/2=170d (pH=4,50℃);Half-life t1/2 = 303 d (pH=7, 50℃).Hydrolysis was less than 10% after 5 days.
      Biodegradation in water: aerobic degradation: activated sludge, at a concentration of 37mg/l, was degraded 70-80% in 28 days, 80-90% in 14 days, and 70-80% in 14 days in the reference group.Easily biodegradable.
      Biodegradability: aerobic degradation: 97%/14d, easy to eliminate. COD=944mg/g, BOD5 < 2mg/g,
BOD5/COD: < 0.002, no rapid degradation ability (BOD5/COD<0.5).

Potential bioaccumulation
      Octanol-water distribution coefficient:

Log Pow: 3.72 (25℃) (measurement)
No significant bioaccumulation potential.The Log Pow < 4

Migration in soil
      no data available.
      No water, sewage or soil allowed to into!

13 - Disposal Considerations

Refer to national and local regulations before disposal.

Waste chemicals
      Recycling should be considered first, and if not, collection.It is recommended that the waste be transported to the relevant waste disposal unit recognized by the state for treatment.The incineration method is recommended for disposal. The flue gas produced by incineration contains phosphorus oxide, and the tail gas should be neutralized and washed before discharge.
      The product shall not be disposed of by discharging into sewers, rivers, soil or household garbage.

Contaminated packaging:
      Empty containers with product residues or uncleaned should be sealed, labeled and disposed of or recycled in accordance with relevant government and local regulations.If the quantity is large, consult the supplier.
      When an empty package is delivered uncleaned, the receiver must be aware of any hazards that the residue may cause.Do not reuse undisposed or discarded empty containers containing the product.If you want to reuse and waste
      Empty containers that are contaminated should be thoroughly cleaned until the product is no longer present.The cleaning fluid should be treated innocently.
      Packaging containers should not be used as packaging for food, food additives, etc., whether or not thoroughly cleaned.

     The disposal process should avoid polluting the environment.Disposal personnel should wear necessary protective equipment.

14 - Transport Information

United Nations dangerous goods number (UN no.)

      None (not meeting classification requirements)

United Nations transport name
      None (not meeting classification requirements)

United Nations classification of risk
      None (not meeting classification requirements)

Packaging category
      None (not meeting classification requirements)

Packaging marks



Packing method
      Storage tank, galvanized iron drum, threaded glass bottle, high pressure polyethylene plastic drum.

Marine pollutants


Transportation precautions
      Before transportation, it is necessary to check whether the packaging container is complete and sealed, so as to ensure that the container does not leak, collapse, fall or damage during transportation.
      During the railway transportation, the dangerous goods should be equipped in strict accordance with the dangerous goods packing list in the "dangerous goods transportation rules" of the ministry of railways.
      Transport vehicles should be equipped with corresponding types and quantities of fire equipment and leakage emergency treatment equipment.It is strictly prohibited to mix with oxidizer, alkali, acid and edible chemicals.
      Handle lightly to prevent damage to packaging and containers.In transit should be protected from the sun, rain, high temperature.
      When the automobile is transported, the package should be fixed to reduce the shock.
      Glass bottles shall be packed in corrugated cardboard boxes or wooden

15 - Regulatory Information

Safety, health and environmental regulations/legislation specific for the substance or mixture

      no data available

Chemical Safety Assessment
      For this product a chemical safety assessment was not carried out.
      In case of contact with eyes, rinse immediately with plenty of water. Avoid release to the environment. Refer to special instructions/safety data sheets.

16 - Other Information

      The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. Ningbo Lucky Chemical Industry CO.,LTD,shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of
invoice or packing slip for additional terms and conditions of sale.




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