Water decolorizers are chemicals that are specifically designed to remove colour and other contaminants from wastewater, and they play an important role in the field of water treatment. Here is some key information about water quality decolourisers:

1. definition and function:
2. Water decolorants remove unwanted dye groups from wastewater, and they usually combine multiple functions such as decolourisation, flocculation, and COD degradation.
3. Decolorizers make water clear by adsorbing pigment particles, neutralizing charges, and flocculating suspended substances.
4. Application scope:
5. It is mainly used for the decolourization of high-colour wastewater of dyestuff factories, and is suitable for the wastewater treatment of reactive, acidic and disperse dyestuffs.
6. It can also be used in textile and printing and dyeing wastewater treatment, pigment, ink, paper and other industrial wastewater treatment.
7. It can also be used as reinforcing agent and sizing agent for papermaking.
8. Quality standard:
9. Appearance: light colour, viscous liquid.
10. Viscosity 20°C: 3-5s.
11. pH value (30% aqueous solution): 3-5.
12. Solid content ≥50%.
13. Method of use and dosage:
14. Dilute the product with 10-40 times of water, then add it into water directly, stir for several minutes and then carry out sedimentation or air flotation to get the clear liquid after decolourisation.
15. The pH value of wastewater should be adjusted to 4-12 first.
16. When the colour and COD of the wastewater are high, it is advisable to use the decolourant together with organic coagulant aid (PAM) to treat it.
17. Storage conditions:
18. The product is non-flammable and explosive, it should be stored at room temperature, do not expose it to the hot sun.
19. Laboratory small test process:
20. Take the appropriate amount of wastewater with a beaker (500ml or so), adjust the pH value; add drops of chemicals: first add a certain amount of decolorant (0.5 ‰ -3 ‰), stirring, and then add 1 ‰ of PAM three, five drops, stirring, standing; observe the supernatant chromaticity whether to meet the requirements, such as not to meet, adjust the amount of chemicals dosage, repeat the operation.
21. Market situation:
22. With the improvement of environmental protection consciousness and the strengthening of pollution prevention and control, decolouring flocculant will play a more important role in the field of water treatment.

water decoloring agent manufacturer
TEL: +86-632-3671188
FAX: +86-632-3671189
E-mail: [email protected]
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China

Kairui Chemical is a professional scale water treatment chemicals manufacturer, Kairui Chemical has a large scale, production experience, advanced production equipment and so on.
Need to consult the purchase can be contacted as follows:

Contact: Kobe Huang (VP of Sales)

           Aaron Lee (Export Manager)

TEL: +86-632-3671188
FAX: +86-632-3671189
E-mail: [email protected]
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China

HEDP, known as 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, is an organophosphonic acid compound. It is mainly used as a water quality stabiliser and chelating agent, and is widely used in household and industrial applications.HEDP has the chemical formula C2H8O7P2 , and belongs to the phosphonate family, which can be further classified as a chelating agent, scale inhibitor, stabiliser and corrosion inhibitor.
hedp chemical structure

hedp chemical structure

The structural formula of the related sodium salt of HEDP, HEDP 2NA, is as follows:

structure of hedp2na

Shandong Kairui Chemistry Co., Ltd. is a professional HEDP manufacturer, the company has advanced production equipment and management experience.

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Contact Us

TEL: +86-632-3671188

FAX:+86-632-3671189

E-mail:[email protected]

ADD:No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China

Kairui Chemical is a professional manufacturer of Polyhydric Alcohol Phosphate Ester and other water treatment chemicals. The company's information about this product can be seen at the following website:
Kairui Chemical's contact information
Contact: Kobe Huang (VP of Sales)

           Aaron Lee (Export Manager)

TEL: +86-632-3671188

FAX: +86-632-3671189

E-mail: [email protected]

ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China

Polyol Phosphate Ester is a high-performance lubricant base stock with a unique set of properties that allow it to excel in a variety of applications. The following are some of the distinguishing features of Polyester Phosphate Ester:

1. High temperature stability: polyester phosphate esters exhibit excellent stability at high temperatures and are suitable for use in high temperature operating environments such as aircraft turbine engines and high temperature gas turbines.
2. oxidative stability: these esters have good oxidative stability, and can resist decomposition at high temperatures and in an aerobic environment, extending the service life of the lubricant.
3. Low temperature fluidity: polyester phosphates maintain good fluidity at low temperatures, meaning they can be used in extreme low temperature environments without losing their lubricating properties.
4. High Viscosity Index: Polyester phosphates have a high viscosity index, which means that their viscosity varies little with temperature, providing consistent lubrication over a wide range of temperatures.
5. Extreme Pressure and Anti-Wear Properties: Polyester phosphates have good extreme pressure (EP) and anti-wear (AW) properties, which are effective in reducing wear on metal contact surfaces and preventing metal sticking under extreme conditions.
6. Frictional properties: Due to the polarity of the ester molecule, polyester phosphates are able to reduce friction by adsorbing onto metal surfaces through van der Waals forces or chemical bonding.
7. Environmental friendliness: many polyester phosphate esters have good biodegradability, low impact on the environment, in line with modern environmental requirements.
8. Chemically stable: polyester phosphates have good resistance to hydrolysis, which means they retain their properties in wet environments.
9. Synthesisability: polyester phosphates can be synthesised by esterification, using penta-polyethylene glycol, di-penta-polyethylene glycol and a variety of mono-saturated C5-C10 fatty acid blends as raw materials.
10. Versatility: Polyester phosphates can be modified by changing the molecular structure to tailor their properties to meet the needs of specific applications.

These properties have led to a wide range of applications for polyester phosphate esters in aerospace, automotive, industrial machinery, hydraulic systems and lubricants. For example, MIL-PRF-23699G Enhanced Ester (EE) aviation turbine engine lubricants are based on polyester phosphate esters and require specific viscosity characteristics and very low pour points to ensure performance at extreme temperatures. In addition, polyester phosphate esters are used to develop environmentally friendly/biodegradable lubricants that have a low environmental impact.