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1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) CAS NO. 2809-21-4

1. Product Introduction 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) CAS NO. 2809-21-4 Molecular Formula: C2H8O7P2 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) other names Etidronic acid, is a bisphosphonate used in detergents, water treatment, cosmetics and pharmaceutical treatment.......

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1. Product Introduction

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)

CAS NO. 2809-21-4

Molecular Formula: C2H8O7P2

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) other names Etidronic acid, is a bisphosphonate used in detergents, water treatment, cosmetics and pharmaceutical treatment. Etidronic Acid (HEDP) shows excellent scale and corrosion inhibition effects and has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions.


2. Specification or COA

Items

Specification

Results

Active Acid (%)

60.0 min

60.6

Phosphorous acid as PO 3 3- (%)

2.0 max

0.6

Phosphoric acid as PO 4 3 (%)

0.8 max

0.1

Chloride as Cl (ppm)

100 max

53.0

Sequestrant value (CaCO3 ) mg/g as
product at PH 11-12

500 min

518

pH (1% solution) @20 °C

2.0 max

1.6

Density (20℃),g/cm 3

1.440 min

1.443

Iron content (Fe ppm)

35.0 max

3.2

Colour (Hazen)

80 max

20

Appearance

Clear colorless to pale tan liquid

Clear colorless to pale tan liquid


3. Product application

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) is used as a retardant in concrete, scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. Usually, HEDP is also used together with polycarboxylic acid(superplasticizer), in which it acts as reducing agent.


4. Packing & Delivery

Standard export neutral packing in 250KG/Drum, or in ISO tank.

20'FCL =20MT IN DRUM or 20MT IN ISO TANK

Available from stock of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) for prompt delivery


5. FAQ

Where did Meiyachem company come from?

Meiyachem was founded in Henan in 2005. Consistently with sister company KEMIACHEM CO., LIMITED, we are a global professional chemical solvents manufacturer and distributor through supplying solutions for a variety of chemicals with diverse applications and serve a wide range of industries.

Will the products I use from Meiyachem continue to have the same quality, safety, and performance?

Yes. We will continue to manufacture and supply products at the same manufacturing locations, and every product will uphold the same standards of quality, safety, and performance.

How can I place a sample order? and is there a charge?

Samples may be ordered via Meiyachem website and there is no associated charge.

What price can I get?

“Quick turnover and small profit” is a guiding principle of our sales promotion work. We maintain a flexible policy in price and make the maximum profit to customers.

Will Meiyachem be ISO certified?

Meiyachem is seeking ISO certification on its products.


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