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"We specialize in the research and production of phosphates. With production base in Yunnan and Guizhou which has abundant resources of high quality phosphate rock and non-ferrous metal ore, we have complete product line of potassium phosphates and precious metal salts.

Our main products are phosphorous acid, potassium pyrophosphate, potassium tripolyphosphate, sodium acid pyrophosphate, sodium tripolyphosphate. The quality of our products is up to US-EU standard such as RoHS, FCC and etc., and got REACH pre-registration. We can offer industrial customization and supply various specifications according to customers' requirements."

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Hangzhou TongVo Chemicals Potassium tripolyphosphate (Technical grade) is a hygroscopic white material, granular, soluble in water, which gives moderately alkaline solutions.

Hangzhou TongVo Chemicals Potassium tripolyphosphate (Technical grade)

Hangzhou TongVo Chemicals Phosphoric acid (Technical grade) is also known as orthophosphoric acid which is a mineral (inorganic) acid. Phosphoric acid is manufactured by the treatment of phosphate rock.

Hangzhou TongVo Chemicals Phosphoric acid (Technical grade)

Hangzhou TongVo Chemicals Potassium pyrophosphate (Technical grade) is water-soluble, colorless crystals; dehydrates below 300°C, melts at 1090°C.

Hangzhou TongVo Chemicals Potassium pyrophosphate (Technical grade)

Hangzhou TongVo Chemicals Phosphorous acid (Technical grade) is colorless crystalline, hygroscopic, deliquescent &amp; cautic.

Hangzhou TongVo Chemicals Phosphorous acid (Technical grade)

Hangzhou TongVo Chemicals Pyrophosphoric acid (Technical grade) is colorless, odorless, hygroscopic, syrupy liquid or crystal form.

Hangzhou TongVo Chemicals Pyrophosphoric acid (Technical grade)

Hangzhou TongVo Chemicals Copper pyrophosphate (Technical grade) is light blue powder, soluble in acid, insoluble in water.

Hangzhou TongVo Chemicals Copper pyrophosphate (Technical grade)

Hangzhou TongVo Chemicals Potassium phosphate (Technical grade) is colorless crystals or white powder.

Hangzhou TongVo Chemicals Potassium phosphate (Technical grade)

Hangzhou TongVo Chemicals Potassium dihydrogen phosphate (Technical grade) is colorless or white crystalline granule or crystalline powder, odorless and steady in air.

Hangzhou TongVo Chemicals Potassium dihydrogen phosphate (Technical grade)

Hangzhou TongVo Chemicals Polyphosphoric acid (Technical grade) is clear transparent colorless viscous liquid, corrosive, deliquescent, easy to flow at 60 ℃, freezing like glass at low temperature, soluble in water with hydrolysis to phosphoric acid.

Hangzhou TongVo Chemicals Polyphosphoric acid (Technical grade)

Hangzhou TongVo Chemicals

"We specialize in the research and production of phosphates. With production base in Yunnan and Guizhou which has abundant resources of high quality phosphate rock and non-ferrous metal ore, we have c

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