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HEDP•Na2(Disodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid)

HEDP•Na2(Disodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid) is a white powder used as a water treatment agent. It helps to prevent scale formation and corrosion in water systems. HEDP•Na2 can be used in various applications, including cooling towers, boilers, process water systems, and more. If you are looking for a reliable and effective water treatment agent, HEDP•Na2 is a perfect choice. China Best Chemical offers high-quality HEDP•Na2 at an affordable price. Contact us today to learn more about our products and services.

Product Description

CAS NO. 7414-83-7

Dequest 2016BD

Molecular Formula: C2H6O7P2Na2

Structural Formula:

HEDP•Na2

Properties:

HEDP•Na2 is an organophosphorus acid corrosion inhibitor that can chelate with Fe, Cu, and Zn ions, providing excellent scale and corrosion inhibition effects even under temperatures such as 250℃. It demonstrates excellent stability even under elevated pH levels and has good tolerance for acidic/alkaline solutions and chlorine oxidation. It is not easily hydrolyzed or decomposed under normal light and heat conditions. Additionally, it forms six-ring chelating compounds with metal ions in the water system, particularly Ca2+, and has good scale inhibition effects as well as dissolution threshold effects. Furthermore, when combined with other Water Treatment Chemicals, the synergistic results are further enhanced.

Specification:

itemsindex
AppearanceColorless to yellowish transparent liquidWhite powder
Active content(HEDP)% ≥16.574.0-79.0
Active content (HEDP•Na2)% ≥2089.8
density (20℃)g/cm3 1.12-1.22--
Fe3+ μg/g ≤--35
Phosphorous acid (asPO33-)% ≤ --2
Moisture,% --3-6
PH (1% water solution) 4.0-6.04.0-6.0

HEDP•Na2  Usage:

HEDP•Na2 is widely used in different fields for scale and corrosion inhibition, such as electric power, chemical industry, metallurgy, fertilizer, circulating excellent water systems, medium to low-pressure boilers, and oil field pipelines. Additionally, it can be utilized as a detergent for both metal and nonmetal in the light-weaved industry and a dyes fixation agent within the dyeing industry. In non-cyanide electroplating processes, this organophosphorus acid acts as an effective chelating agent.

Package and Storage:

HEDP•Na2 plastic drum,30kg or 250kg, or confirmed by clients. Storage for ten months in a shady room and dry place.

Safety Protection:

HEDP•Na2 Weak acidity, Avoid contact with eye and skin. Once contacted, flush with water.

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HEDP·Na2 Applications

HEDP·Na2 is the partially neutralized sodium salt of HEDP, retaining its high-temperature scale inhibition and chlorine tolerance.

  • Circulating cooling water
  • Systems requiring a near-neutral inhibitor feed

Dosage & Feed Guidance

ApplicationTypical dosage
Cooling water1–10 ppm as active

Suits systems that need a lower-acidity inhibitor feed. VCYCLETECH provides a tailored dosing program on request — email sales@vcycletech.com.

HEDP·Na2 — Packaging, MOQ & Lead Time

Packaging25 kg drums, 200 kg drums and 1000 kg IBC totes; bulk on request
Minimum order (MOQ)1 metric ton
Lead timeIn-stock items ship in about 5–7 days; a full 20′ container is typically ready in about 15 days
OEMYes — private-label packaging and custom concentration (your logo on the drums)
ODMYes — custom formulation development under NDA, MOQ 1 metric ton
Payment & shippingT/T or L/C; FOB / CIF worldwide

Why Choose VCYCLETECH

  • Factory-direct manufacturer. HEDP·Na2 is produced in our own China facility — stable quality and competitive, factory-direct pricing.
  • ISO 9001, ISO 14001 & ISO 45001 certified production. See our quality & certifications.
  • COA with every batch and an SDS on request; free samples available.
  • OEM / ODM & private label — custom concentration, packaging and formulation.
  • Technical support & worldwide shipping with a recommended dosing program for your system.

Request a quote, sample & COA →

HEDP·Na2 — Frequently Asked Questions (FAQ)

What is HEDP·Na2 (Disodium Salt of HEDP) used for?

HEDP·Na2 is the partially neutralized sodium salt of HEDP, used as a scale and corrosion inhibitor and chelating agent where lower acidity is required. It retains HEDP's high-temperature scale inhibition and chlorine tolerance.

What is the recommended dosage of HEDP·Na2?

HEDP·Na2 is dosed at 1–10 ppm (as active) in cooling water, similar to HEDP, and suits systems that need a near-neutral inhibitor feed.

Is VCYCLETECH a manufacturer or trading company of HEDP·Na2?

VCYCLETECH is a China-based manufacturer of HEDP·Na2 (Disodium Salt of HEDP). We supply HEDP·Na2 factory-direct with stable quality, competitive prices and full technical support, and we also offer OEM/ODM and private-label packaging.

What packaging and MOQ are available for HEDP·Na2?

HEDP·Na2 is supplied in 25 kg drums, 200 kg drums and 1000 kg IBC totes (bulk on request). The typical MOQ is 1,000 kg (one IBC tote); trial/sample orders and custom OEM/private-label packaging are available.

Can I get a free sample and COA of HEDP·Na2?

Yes. VCYCLETECH provides free HEDP·Na2 samples and a Certificate of Analysis (COA) with every batch, plus an SDS on request. Email sales@vcycletech.com to request a sample, COA or quotation.
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