MONOBUTYLTIN OXIDE

Monobutyltin Oxide is used as plastic stabilizer raw material, organic tin intermediate, esterification catalyst and electrophoretic electrodeposition coating catalyst.
Monobutyltin Oxide is synthesized by reacting monobutyltin trichloride with Na2CO3 in the presence of ammonia.
Monobutyltin Oxide is synthesized by the reaction of monobutyltin trichloride and Na2CO3 in the presence of ammonia water.

CAS:    51590-67-1
MF:    C4H10OSn
MW:    192.83
EINECS:    257-300-1

Synonyms
butyloxostannane;Butyltin oxide;MONOBUTYLTIN OXIDE;Monobutyltin Oxide CAS;Butylstannanone;Monobutyltin oxide;51590-67-1;Stannane, butyloxo-;Tegokat 256;BUTYLOXOSTANNANE;Eurecat 8200;BUTYLSTANNANONE;EINECS 257-300-1;CCRIS 6318;mono butyl tin oxide;SCHEMBL195087;AKOS015918349;NS00056772;A828673;257-300-1

​Monobutyltin Oxide is an amorphous white solid phase transfer catalysts. 
Monobutyltin Oxide is hydrolytically stable and can be used in the synthesis of saturated polyester resins for powder coatings and coil coatings, as well in the production of unsaturated polyester resins for gel-coat, sheet molding, and cast molding applications. 
Monobutyltin Oxide might be used also to produce polymeric plasticizers.

Monobutyltin Oxide is used primarily to catalyze esterification and polycondensation reactions at temperature between 210°C and 240°C (stable up to 250°C). 
Monobutyltin Oxide begins to solubilize in carboxylic acid at 80°C during the reaction and becomes incorporated into the final product without affecting the quality of the product. 
For this reason Monobutyltin Oxide does not require neutralization or filtration at the end of production.

Monobutyltin Oxide can significantly shorten esterification times, offers energy savings due to lower reaction temperatures, with a consequent more efficient use of equipment. 
Monobutyltin Oxide minimizes side reactions such as dehydration and oxidative degradation of polyhydric alcohols, especially secondary alcohols. 
Monobutyltin Oxide can be charged up front with other reactants, and requires no special handling other than avoiding excessive exposure to moisture.

Monobutyltin Oxide is mainly used as a catalyst for the production of saturated polyester resins such as powder coatings, coil (steel) coatings, insulating paints, and unsaturated polyester resins. 
Used as plastic stabilizer raw materials, organotin intermediates, esterification reaction catalysts, electrophoretic electrodeposition coating catalysts.
Monobutyltin Oxide is a versatile organotin compound known for its unique properties and applications across various industries. 
Monobutyltin Oxide serves as a crucial intermediate in the synthesis of organotin stabilizers, which are widely utilized in the production of PVC and other polymers. 
Monobutyltin Oxide's ability to enhance thermal stability and improve the mechanical properties of plastics makes it an essential additive in the manufacturing process. 
Additionally, Monobutyltin Oxide is recognized for its antifungal and biocidal properties, making it valuable in agricultural applications, particularly in the formulation of antifungal agents for crop protection.

Uses
1. Monobutyltin Oxide is suitable for the synthesis of unsaturated polyester resin.
2. Monobutyltin Oxide is suitable for the production of unsaturated polyester resin.
3. Monobutyltin Oxide is suitable for the production of polymeric plasticizer.
Monobutyltin Oxide is mainly used as a catalyst in the production of saturated polyester resins such as powder coatings, coil (steel) coatings, and insulating varnishes, and as a catalyst in the production of unsaturated polyester resins; Monobutyltin Oxide is used as a raw material for plastic stabilizers, an organic tin intermediate, an esterification reaction catalyst, and an electrophoretic electrodeposition coating catalyst.
Plastic stabilizer raw materials, polyurethane catalysts, organotin intermediates, esterification catalysts, electrophoretic electrodeposition coating catalysts.

Preparation    
Weigh 12gNa2CO3 into a reaction bottle and stir and dissolve it with 200g of water, add 200g of ammonia water with a concentration of 20% to put the reaction bottle into a water bath and raise the temperature to 50 ℃; Weigh 1g of additive, dilute with 20g of water, take 50% and add it to the reaction bottle; Weigh 100g of monobutyltin trichloride liquid, put it into a constant pressure funnel and slowly drop Monobutyltin Oxide into the reaction bottle, constant temperature reaction for 2h. 
The diluted additive 20% is added every 30 minutes during the constant temperature process. After the reaction is over, the Monobutyltin Oxide obtained from the reaction is filtered by a cloth funnel, the filter cake is transferred into a 500Ml beaker and about 200ml of water is added for washing, the washing temperature is controlled at 50-60 ℃, and the filter cake is filtered by suction after repeated twice. 
the obtained filter cake is dried by a rotary evaporator at a drying temperature of 70-80 ℃, and finally 70.78g Monobutyltin Oxide is obtained with a yield of 99.1%.