Sell sodium hydrosulfide

Our company is a professional chemical company, is one of the biggest manufacture factory produce caustic soda and calcium carbide in north, have perfect production capacity. Our company is also doing business on other chemical product, such as aluminum sulfate , citric acid monohydrate , sodium pyrosulfite and sodium hydrosulfide, offer the specification of sodium hydrosulfide :
Content 70%,
Na2S % 2.5Max
Na2SO3% 1.5Max
Iron(Fe) PPM 20
Na2CO3% 1Max
Insolubles In Water % 0.005Max
Packing with 25 kg woven plastic bags. Many years of exit experience lets our company have supply material in time, product quality is high, optimum characteristic of price, welcome everyone to contact us.