Industrial grade 98% Monopotassium phosphite CAS 13977-65-6 MKP-ITE

Synonyms:MKP-ITE
Potassium phosphite mono
Monopotassium phosphonate
Phosphonic acid, monopotassium salt
Monopotassium hydrogen phosphite
Potassium dihydrogen phosphite
Molecular Formula:H2KO3P
Molecular Weight: 120.09
HS Code: 2835100000
Grade: Industrial grade 98%
Hazard Class:General Cargo

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Model:
13977-65-6
Brand:
futurechem
Code:
13977-65-6

Product Description

Certificate of Analysis-COA

Item		Specification	Result
Appearance		White crystal	White crystal
Assay%,≥		98	98.77
Phosphorus content	P2O3,%，≥	45	45.17
	Converted to phosphorus pentoxide content,%，≥	58	58.46
K2O Content,%，≥		38	38.62
Fe，≤		0.001%	0.0008%
Water insoluble substance %，≤		0.05%	0.0032%
Cl，≤		0.005%	<0.005%
Pb，≤		0.005%	<0.005%
PH(10%)		4-5	4.25
Water dissolution test (10%)		Clear,no visible impurities	Clear,no visible impurities
Conclusion:		Complies with ENTERPRISE STANDARD.

Applications

1. Crop Nutrition & Plant Defense A high-analysis phosphite fertilizer and crop protection raw material. Supplies phosphorus and potassium directly to plant metabolism while stimulating natural plant defense responses against oomycete diseases, supporting healthier, higher-yielding crops in horticulture and field agriculture.

2. Foliar & Fertigation Programs Fully water-soluble with rapid leaf uptake, ideal for foliar sprays, drip irrigation and fertigation systems. High compatibility with common agrochemicals enables flexible tank-mix programs and efficient nutrient delivery.

3. Water Treatment & Oxygen Scavenging An effective oxygen scavenger and reducing agent in boiler and cooling water systems. Rapid reaction with dissolved oxygen protects metal surfaces and extends equipment service life.

4. Chemical Intermediates A versatile raw material for synthesizing other phosphite salts and phosphorus-based chemicals. Consistent purity and controlled impurities support reproducible downstream reactions.

5. Biostimulant & Specialty Agriculture A key component in biostimulant and plant health product formulations. Stable quality and consistent performance support reliable results in specialty crop programs.

6. Industrial & Specialty Applications Used in metal treatment and specialty chemical processes. Stable supply and reliable quality support continuous industrial production.

Production Line

We operate 10+ production lines, backed by a well-stocked raw material warehouse.

Our workshop is equipped with automated machinery — ensuring high consistency and precision on every order, from trial samples to full container loads.

Every order follows a standardized workflow. Key quality control points are set at every stage.

Factory Area

Standardized Process Flow

Production Capacity

Located in Shandong, our factory is approximately 300km from Qingdao Port, enabling fast and cost-effective delivery to customers worldwide.

Monopotassium phosphite H2KO3P 13977-65-6 MKP-ITE Potassium phosphite mono Monopotassium phosphonate Phosphonic acid monopotassium salt Monopotassium hydrogen phosphite Potassium dihydrogen phosphite Monopotassium phosphite supplier

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.