Industrial Grade High Quality Potassium Dihydrogen Phosphate Recommended
Key attributes
Products: Potassium dihydrogen phosphate/MKP
Molecular formula: KH2PO4; Molecular weight: 136.09
Industrial grade 98% CAS 7778-77-0
Fertilizer (Agricultural/Medicine) grade 98% CAS 7778-77-0
Products meets HG/T 4511-2013standard:
Analysis | Test Method | Standard request |
MKP (KH2PO4)content % | HG/T 4511-2013 | ≥98% |
Water insoluble % | HG/T 4511-2013 | ≤0.3% |
PH value (10g/mL) | HG/T 4511-2013 | 4.4~4.6 |
Chloride (as Cl) ppm | HG/T 4511-2013 | <0.79% |
Arsenic (as As) ppm | HG/T 4511-2013 | <0.005% |
Moisture | HG/T 4511-2013 | <0.48% |
Lead (as Pb) ppm | HG/T 4511-2013 | <4 |
Loss on drying % | HG/T 4511-2013 | <1 |
P2O5 (water-soluble) % | HG/T 4511-2013 | ≥52.1 |
K2O (water-soluble) % | HG/T 4511-2013 | ≥34.5 |
References: Riel Chemical Lab1&2, National public service platform for standards information.
Physicochemical property
Molecular weight: 163.94 g/mol | Appearance: white crystalline or powdery solid. |
Odor: Odorless or slightly sulphide odor. | Density: 1.62 g/cm³ (dodecahydrate, 20°C). |
Melting point: approx. 73.4°C (dodecahydrate decomposition). | Chemical Safety: Unrestricted goods |
Solubility: Water: easily soluble in water, aqueous solution is strongly alkaline (pH about 12); Organic solvent: insoluble in ethanol, and other organic solvents. | |
Hydrolysis reaction: Fully ionized in water to form phosphate ions and sodium ions | |
Complexation: Form an insoluble precipitate with metal ions (e.g. Ca² +, Mg² +) for softening hard water. | |
Thermal stability: It decomposes when heated to high temperatures, forming sodium phosphate and oxygen. | |
Acid base: The aqueous solution is strongly basic and can react with acid to form phosphate |
Potassium dihydrogen phosphate (KH₂PO₄) is an important chemical product that is widely used in agriculture,
food, medicine, and industry. In recent years, with the acceleration of the global agricultural modernization process
and the promotion of environmental protection policies,
the potassium dihydrogen phosphate market has shown a rapid development trend.
1. Application of potassium dihydrogen phosphate in water treatment
Corrosion inhibitor
Potassium dihydrogen phosphate can be added as a corrosion inhibitor to water treatment systems,
especially in boiler water and cooling water systems. It can form stable complexes with calcium
and magnesium ions in water to reduce the formation of scale, thus protecting equipment from corrosion.
pH regulator
Potassium dihydrogen phosphate has a certain buffering capacity
and can be used to regulate the pH value of the water body to keep it in a suitable range (usually 6.5-8.5),
thus optimizing the water treatment effect.
Nutrient source
In sewage treatment (such as biological treatment process),
potassium dihydrogen phosphate can be used as a phosphorus source to
provide essential nutrients for microorganisms, promote the growth and metabolism of microorganisms,
and improve the efficiency of sewage treatment.
2. Advantages of potassium dihydrogen phosphate in water treatment
High efficiency
As a corrosion inhibitor and pH regulator, potassium dihydrogen phosphate has a remarkable effect
and can effectively prevent scale and corrosion.
Environmental protection property
Potassium dihydrogen phosphate is a relatively environmentally friendly chemical that
does not cause serious secondary pollution to water bodies.
Ease of solubility
Potassium dihydrogen phosphate is soluble in water, easy to use, and can work quickly.
FAQ
1.What is your payment term?
We can accept T/T and L/C at sight as payment term.
2.Are you able to deliver on time?
Of course! we specialised in this line for many years,
many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!
3.Do you provide free sample?
Yes, we can provide free sample . You only need to take the express fee.
4.How about the price?Can you make it cheaper?
We always take the customer’s benefit as the top priority.
Price is negotiable under different conditions, we are assuring you to get the most competitive price.
5.Can I visit your company and factory in China?
Sure. You are very welcomed to visit our company in Weifang, China.
(We will have someone responsible for picking up and dropping off at Weifang Airport)
6.What if there is a quality problem?
We have a professional and perfect after-sales service team, timely for you to deal with all problems.