Best quality Silver Oxide 20667-12-3 - HEDP Cas 2809-21-4 Etidronic Acid Monohydrate – Zoran
Best quality Silver Oxide 20667-12-3 - HEDP Cas 2809-21-4 Etidronic Acid Monohydrate – Zoran Detail:
Product Description
1-Hydroxyethylidene-1,1-diphosphonic acid / HEDP CAS 2809-21-4
1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP)
CAS No: 2809-21-4
Molecular Formula: C2H8O7P2
Use
HEDP is a type of cathodic corrosion inhibitor. Compared with inorganic phosphates, it can be compounded with sodium molybdate, silicate, zinc salt and co-polymer mainly as scale corrosion inhibitor in treatment of cyclic cooling water, oil field flash and boiler water .It can be also used as sequestrant in detergent and complexing agent and metal scour in electroplating.
Characteristic
HEDP may debond to five ions positive or negative and chelate the two-valent metal ion in water. Thus it’s take a good scale inhibiting effect. This product is proof against high temperature, oxidizing and high pH value. It shows perfect synergic effect and solving threshold effect while be compounded with other corrosion inhibitors and scale inhibitors.
Specification
Appearance | Colorless to pale yellow transparent liquid |
Active content | ≥60.0% |
Phosphorous acid (as PO33-) | ≤2.0% |
Phosphoric acid (as PO43-) | ≤0.8% |
Chloride (as Cl-) | ≤100ppm |
Density (20℃) | ≥1.40 g/cm3 |
PH (1% water solution) | ≤2.0 |
Calcium sequestration | ≥500 mgCaCO3/g |
Usage
HEDP can be compounded with hydroxylaectic acid, PAA, BTA, molybdate, copolymer, zinc salt, to make up whole-organic-alkali or low-phosphor zinc-based agent of water treatment to be used in all kinds of cyclic cooling water systems different from water quality. The dose is generally 2~10mg/L while HEDP is used alone.
Package and Storage
250kg plastic drum or 1250kg IBC,to be stored in cool and ventilated room with a shelf time of one year.
Specification
Pls contact us to get COA and MSDS. Thanks.
Product detail pictures:


Related Product Guide:
Well-run equipment, expert income workforce, and far better after-sales expert services; We are also a unified large family, anyone stick to the corporate value "unification, dedication, tolerance" for Best quality Silver Oxide 20667-12-3 - HEDP Cas 2809-21-4 Etidronic Acid Monohydrate – Zoran , The product will supply to all over the world, such as: Uzbekistan, Bulgaria, Portugal, We look forward to hearing from you, whether you are a returning customer or a new one. We hope you will find what you are looking for here, if not, please contact us immediately. We pride ourselves on top notch customer service and response. Thank you for your business and support!

As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
