NT CAT T33 catalyst CAS11207-74-9 Newtopchem

NT CAT T33 is a stannous caprylate catalyst used in the production of polyurethane foams. It is a clear, colorless liquid with a mild odor. NT CAT T33 is compatible with many polyols and isocyanates. It is also non-corrosive and non-flammable.

Physical and chemical properties



CAS number


Molecular Formula


Molecular weight

364.43 g/mole


Clear colorless liquid

Specific gravity

1.065 @ 25°C

Refractive Index

1.495 @ 25°C


Dissolve in most organic solvents

Flash Point

57°C (135°F)

Spontaneous combustion temperature

725°F (390°C)


Stable under normal storage conditions


Corrosive to skin and eyes. May be harmful if swallowed. The steam may irritate the eyes, nose and throat. May cause respiratory irritation. May be harmful if inhaled. May cause skin irritation. May be harmful if swallowed. First aid: In case of contact with skin, wash immediately with soap and water. If contact is made with eyes, immediately rinse with water for 15 minutes and seek medical attention. If swallowed, do not try to induce vomiting. Call poison control or seek medical attention immediately.


NT CAT T33 is used in a variety of polyurethane foam applications, including:

· Rigid foams

· Soft foam

· Spray foam

· In-situ foam

· Elastomer

· Paint

· Ink

· Adhesive


Precautions for use

NT CAT T33 is a hazardous material and should be handled with care. Always follow the manufacturer’s instructions when using a NT CAT T33.


Store in a cool, dry place. Keep out of reach of children and pets.


Shelf life:

 Remain unopened for two years


Storage and Transportation:

Should be sealed, stored in a dry cool ventilated warehouse



200KG/ barrel storage: It is recommended to store in a dry and cool area with proper ventilation. After the original packaging, please fasten the packaging cover as soon as possible to prevent moisture and other substances from mixing and affecting the product performance. Do not inhale dust and avoid contact between skin and mucous membrane. Smoking, eating and drinking are prohibited in the workplace. Shower and change after work. Store contaminated clothes separately and use them after washing. Practice good hygiene.

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