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Potassium salt of 1-Hydroxy E thylidene-1,1-Diphosphonic Acid CAS 67953-76-8 HEDP·Kx

HEDP·K2 is the potassium salt of HEDP. Compared with the sodium salt of HEDP, HEDP·K2 has higher solubility under neutral conditions and is an excellent inhibitor of calcium carbonate scale. HEDP·K2 is mainly used for metal corrosion inhibition, swimming pool antifouling, metal cleaning, container cleaning, iron scale control, metal pretreatment, low-pressure boiler water treatment, and circulating water treatment.

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Model:
67953-76-8
Brand:
futurechemical
Code:
67953-76-8

Product Description

Potassium salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP·K2)

CAS No. 21089-06-5

Alias:Hydroxyethylidene diphosphonic acid potassium salt

Molecular formula:C₂H₆O₇P₂K₂

Structural formula:

1. Performance and use:

2. Technical indicators

Item	Indicator
Appearance	Colorless to slightly yellow transparent liquid
Active ingredient（HEDP）/%	26.0～30.0
Total phosphorus( PO₄^3-)/%	24.7～26.7
pH(1%Aqueous solution)	6.0～8.0
Density（20℃）)/g·cm^-3	1.30～1.40
Fe /mg·L^-1	≤20.0

3. Packaging and storage

HEDP·K2 is packed in plastic barrels, 30kg or 250kg per barrel, which can also be determined according to user needs. HEDP·K2 should be stored in a cool place indoors, and the storage period is ten months.

4. Safety protection

HEDP·K2, pay attention to labor protection when handling, avoid contact with skin, eyes, etc., rinse with plenty of water after contact.

Related keywords：

Water treatment chemicals

Water treatment manufacturer

China Quality Supplier

Organic phosphonate

Corrosion inhibitor

Scale inhibitors and dispersant

Potassium salt of 1-Hydroxy E thylidene-1 1-Diphosphonic Acid CAS 67953-76-8 C2H4K4O7P2 HEDP·Kx

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.