Phosphorous acid, crystal
70% Phosphorous acid
Potassium dihydrogen phosphite , crystal
Diammonium phosphite, crystal25

Hangzhou Damin Chemical Co., Ltd. (Daminchem) is a major / leading chemical producer of phosphorous acid (PA) in the world, and the product has been well-recognized by many multi –national companies. This product is used in agrochemicals, PVCadditives, water treatment, and engine oils as well as in a number of other applications.

In addition to this product, we are also making phosphite, such as Potassium dihydrogen phosphite, Diammonium phosphite, etc.

It is Daminchem’s business philosophy that we will help our customers to grow their businesses in terms of providing good quality products, excellent customer service, and reasonable price. We look forward to working with our customers on a long-term base, and we are open for all kinds of business co-operations.




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