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98% High Concentration Potassium Dihydrogen Phosphate for Buffer Agent

Categories Potassium Dihydrogen Phosphate MKP
CAS: 7778-77-0
EINECS: 7778-77-0
Appearance: White crystal particle
Crystalline hydrate: Anhydrous crystals
Life spen: Two years
Density: 2.338 g/cm³
Solubility: Dissolve in water
Brand Name: Riel Chemical
Model Number: 98%
Certification: SGS,ISO9001,CE
Place of Origin: Weifang
MOQ: 20 tons
Price: USD 657/TONS FOB
Payment Terms: L/C, T/T
Supply Ability: 50 tons per day
Delivery Time: 5 work day
Packaging Details: 25 kg polyethylene woven bag, moisture-proof, easy to transport
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98% High Concentration Potassium Dihydrogen Phosphate for Buffer Agent

98% High Concentration Potassium Dihydrogen Phosphate for Buffer Agent
Product Specifications
CAS7778-77-0
EINECS7778-77-0
AppearanceWhite crystal particle
Crystalline hydrateAnhydrous crystals
Life spanTwo years
Density2.338 g/cm³
SolubilityDissolve in water
Product Description

98% High Concentration Potassium Dihydrogen Phosphate (MKP) is a versatile chemical compound with applications across multiple industries.

Key Attributes
  • Chemical Name: Potassium dihydrogen phosphate (MKP)
  • Molecular formula: KH2PO4
  • Molecular weight: 136.09
  • Available in Industrial grade 98% and Fertilizer (Agricultural/Medicine) grade 98%
  • Meets HG/T 4511-2013 standard requirements
Quality Standards
AnalysisTest MethodStandard Request
MKP (KH2PO4) content %HG/T 4511-2013≥98%
Water insoluble %HG/T 4511-2013≤0.3%
PH value (10g/mL)HG/T 4511-20134.4~4.6
Chloride (as Cl) ppmHG/T 4511-2013<0.79%
Arsenic (as As) ppmHG/T 4511-2013<0.005%
MoistureHG/T 4511-2013<0.48%
Lead (as Pb) ppmHG/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 Properties
Molecular weight163.94 g/mol
AppearanceWhite crystalline or powdery solid
OdorOdorless or slightly sulphide odor
Density1.62 g/cm³ (dodecahydrate, 20°C)
Melting pointapprox. 73.4°C (dodecahydrate decomposition)
Chemical SafetyUnrestricted goods
SolubilityWater: easily soluble in water, aqueous solution is strongly alkaline (pH about 12); Organic solvent: insoluble in ethanol, and other organic solvents
Hydrolysis reactionFully ionized in water to form phosphate ions and sodium ions
ComplexationForm an insoluble precipitate with metal ions (e.g. Ca² +, Mg² +) for softening hard water
Thermal stabilityIt decomposes when heated to high temperatures, forming sodium phosphate and oxygen
Acid baseThe aqueous solution is strongly basic and can react with acid to form phosphate
Potassium Dihydrogen Phosphate crystals
Applications
1. Agriculture
  • Efficient water soluble fertilizer providing essential phosphorus (P) and potassium (K)
  • Promotes root development, flowering and fruiting, and enhances stress resistance (drought and cold resistance)
  • Foliar spraying quickly supplements nutrients, especially during fruit expansion or nutrient deficiency
  • Ideal for drip irrigation systems and water-fertilizer integration technology
  • Enhances photosynthesis, increases fruit sugar content, and improves color and taste
  • Boosts plant resistance to pests and diseases, reducing pesticide use
  • Neutral pH makes it suitable for various soils without causing acidification or salinization
2. Industrial Applications
  • Buffer and pH regulator: Used in pharmaceutical production (injections, oral liquids) and industry (E340 additive for dairy products, beverages)
  • Surface treatment and plating: Provides phosphorus source in metal plating solutions to enhance corrosion resistance; used in cleaning agents to remove metal surface oxides
  • Ceramic and glass manufacturing: Acts as flux to reduce firing temperature and improve product transparency or strength
3. Laboratory and Scientific Research
  • Buffer solution preparation: Combined with dipotassium hydrogen phosphate (K₂HPO₄) to prepare buffers (pH 4.5-8.0 range) for biological experiments (PCR, enzyme reactions)
  • Analytical reagent: Serves as standard for phosphorus or potassium in spectral analysis or titration
  • Microbial medium: Provides essential phosphorus and potassium for bacterial or fungal cultures
Frequently Asked Questions
What is your payment term?

We accept T/T and L/C at sight as payment terms.

Are you able to deliver on time?

We specialize in this product line with many years of experience. Our customers choose us because we consistently deliver high-quality products on schedule.

Do you provide free samples?

Yes, we provide free samples. Customers only need to cover the express shipping fee.

How about the price? Can you make it cheaper?

Customer benefit is our top priority. Prices are negotiable based on order quantity and other factors, and we guarantee competitive pricing.

Can I visit your company and factory in China?

You're welcome to visit our facility in Weifang, China. We provide airport pickup and drop-off services at Weifang Airport.

What if there is a quality problem?

We have a professional after-sales service team ready to promptly address any quality concerns.

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