Dear sir or madam ,
We are Tianjin Xinhaojin Chemical Co.,Ltd,who are manufacturing chemical raw materials and export .We are producing paraformaldehyde carbon black lithopone, titanium pigment etc., as time as runing Sodium sulfide,Causticsoda for many chemical raw materials .
As our products are high quality, so they are in good market of many countries ,such as India , South America and European .If you are interested in our products, please don't hesitate to let us know.
We are looking for your reply.
Paraformaldehyde : Paraformaldehyde forms slowly in aqueous formaldehyde solutions (formalin) as a white precipitate, especially if stored in the cold. Formalin actually contains very little monomeric formaldehyde; most of it forms short chains of polyformaldehyde. A few percent of methanol is often added as a stabilizer to limit the extent of polymerization.
Paraformaldehyde is used asfumigant, disinfectant, fungicide, and fixation, and for the preparation of pure formaldehyde. Longer chain-length (high molecular weight) polyoxymethylenes are used as thermoplastic and are known as polyoxymethylene plastic (POM, Delrin). It was used in the past in the discredited Sargenti method of root canal treatment.