Ferrous Sulphate Heptahydrate, also called copperas, is a bluegreen crystals; soluble in water, melts at 64 C. It is commercially generated as a by-product during the manufacture of Titanium Dioxide, or as a by-product of the pickling of steel. It is used as a mordant in dyeing wool, in the manufacture of ink, in water purification as a substitute for aluminum sulfate, as a fertilizer, and as a feed additive. It is used to produce magnetic ferric oxide.

 Technical Index:

Item	National Index	Enterprise index
(FeSO4 · H2O), % , ≥	98	99
Fe,%, ≥	19.7	20
Insoluble matter,%,≤	0.5	0.0015
Pb,%, ≤	0.002	0.0002
As,%, ≤	0.0005	0.0001

 Our advantages in resources:

Our company located in Guangxi where the annual production of titanium dioxide is 300 thousands Tons. It is wellknown that ferrous sulfate heptahydrat (FeSO4·7H2O) is a by-product in the production process of titanium. To produce one Ton titanium,

there are 4 Tons ferrous sulfate heptahydrate byproduct. Usually, the content of Fe is 19% .... And the content of Fe can be above 20% by simple processing. In a word, we are supplying you with the most superior quality at the lowest price. 

DHXY Entech Co., Ltd. , located on the bank of Nanning Canal, headquartered in the Nanning High-tech Park, is a scientific and technological enterprise specializing in the treatment and recycling of industrial waste.
     Our company has developed its own team of experienced engineers and technical experts. We hold advantage in advanced technology and abundant practice experience in industrial waste management, resource utilization, as well as exploitation of energy resources. A number of our technologies and products have been widely adopted by more than 10 chemical plants.
     With the local industrial waste as the main resource, we have set up factories in Nanning, Baise and Yulin, to develop new chemicals. We turn waste into treasure, with high quality and competitive price, our products enjoy great popularity both at home and abroad.
     We stick to our mission of green development, adhere to the operating principle of "Career First, Quality First, Action First ". With our advanced technologies, high-quality products and first-class service, we are strengthening our cooperation with related industries.

Company culture:

Our mission: To maintain a sustainable development.
Our vision: To transform the industrial waste into valuable resources; to convert all the investment into a competitive advantage.
Our operating principle: Career First, Quality First, Action First

Our business positioning:

To advance technology through innovation.
To test our products in practical effectiveness;
To reach a mutually beneficial goal with our clients.

Our tenet:
   To be practicer in green development;
   To be innovator of environmental protection techniques;
   To be impellor of win-win cooperation.