(1-Hydroxyethyliden...

(1-Hydroxyethylidene)biphosphonic acid (HEDP)

(1-Hydroxyethylidene)biphosphonic acid (HEDP)

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1 Metric Ton

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  • Min.Order :1 Metric Ton
  • Purity: 99
  • Payment Terms : L/C,D/A,D/P,T/T,Other

Keywords

HEDPA Etidronic acid 1-Hydroxyethan-1,1-diphosphonsure

Quick Details

  • Appearance:Colorless or light yellow transparent liquid
  • Application:Catalysts and additives Water treatment agent
  • PackAge:250kg drum
  • ProductionCapacity:100000|Metric Ton|Month
  • Storage:Dry cool clean warehouse
  • Transportation:By sea or air

Superiority:

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


Nicknames: hydroxyethyldiphosphonic acid, HEDPA, (1-hydroxyethyldiphosphonic acid, 1-hydroxyethyl-1, 1-diphosphonic acid
CAS No. 2809-21-4
Molecular formula C2H8O7P2

Relative molecular weight: 206.03
Structural formula

1.erformance and use:


HEDP (hydroxyethylenediphosphonic acid) is a kind of organic phosphonic acid scale inhibitor and corrosion inhibitor, which can form stable complexes with iron, copper, zinc and other metal ions, and can dissolve oxides on the metal surface. It can still play a good corrosion and scale inhibition effect at 250℃, and is still very stable at high pH, not easy to hydrolysis, and not easy to decompose under general photothermal conditions. Acid and alkali resistance, chlorine oxidation resistance is better than other organic phosphonic acid (salt). It can form six ring chelates with metal ions in water, especially calcium ions, so it has a good scale inhibition effect and an obvious solution-limiting effect. When combined with other water treatment agents, it shows an ideal synergistic effect.
HEDP solid is a high purity product, which is suitable for cold regions in winter. It is especially suitable for cleaning agents and daily chemical additives in the electronics industry.
HEDP is widely used in power, chemical, metallurgy, fertilizer and other industrial circulating cooling water system, medium and low pressure boiler, oil field water injection and oil pipeline scale inhibition and corrosion inhibition. In the light textile industry, it can be used as a cleaning agent for metals and non-metals, a peroxide stabilizer and a color fixing agent for the bleaching industry, a complexing agent for the cyanide-free electroplating industry, and a carrier for radioactive elements in the pharmaceutical industry.


2. The technical indicators comply with GB/T 26324-2010 HG/T 3537-2010
Item pointer
Comply with GB/T26324-2010 -- comply with HG/T 3537-2010
Colorless or light yellow transparent liquid white crystal
Active component (HEDP) % ≥ 50.0 60.0 90.0
Active component (measured by HEDP·H2O) % -- ≥97.0
Phosphorous acid (measured in PO33-) % ≤2.0 ≤2.0 ≤0.80
Phosphoric acid (measured in PO43-) % ≤0.8 ≤0.8 ≤0.50
Chloride (Cl-) ug/g ≤200 ≤100 ≤100
Iron (as Fe2+) content mg/L ≤20.0 ≤10.0 ≤10.0
Density (20℃)g/cm3 ≥1.36 ≥1.40 --
Calcium chelation value mg/g ≥450 ≥500 --
pH value (1% aqueous solution) 1.5-2.0 1.5-2.0 1.5-2.0

3. Use method
HEDP (hydroxyethylenediphosphonic acid) is generally used as a scale inhibitor with a concentration of 1-10mg /L, and is generally used as a corrosion inhibitor with a concentration of 10-50mg/L. Generally used as a cleaning agent concentration 1000 ~ 2000mg/L; It is usually used in combination with polycarboxylic acid scale inhibitor and dispersant. When used in other industries, the dosage should be determined according to the test.

4. Packaging and storage
HEDP liquids are packaged in plastic drums, 25kg or 250kg per barrel, or according to user requirements. Solid plastic woven bags lined with polyethylene bags, each bag net weight 25kg, or according to user requirements. Store in a cool, ventilated place indoors, moisture-proof, storage period of 12 months.
5. Security protection
HEDP is acidic, pay attention to labor protection during operation, should avoid contact with skin, eyes, etc., should immediately rinse with plenty of water after contact.

 

Package&Shipping

Details:

Qingdao Bravery International Trading Co., LTD. is located in the beautiful tourist city of Qingdao, is a comprehensive chemical enterprise which doing import and export business. Product range including, API, pharmacy intermediates,food additive,Surfactant ,fungicides and other general chemicals. etc.

With the developing world market, we adhere to the principle of "quality, service, integrity and development" ,Forge ahead,and constantly in pursuit of higher level of product quality and service.

We warmly welcome customers home and abroad to build mutual trust, mutual benefit and stable cooperation relation.

 

General items: import and export of goods; Technology import and export; Food additive sales; Feed additive sales; Sales of special chemical products (without hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Livestock and fishery feed sales; Feed raw material sales; Fertilizer sales; Sales of bio-based materials; Health food (pre-packaged) sales; Food sales (pre-packaged food only); Sales of agricultural and sideline products; Pharmaceutical excipients sales; Drug wholesale

 

 

We could give you:

1.Best quality in your requirement

2.Competitive price in China market with standard high quality or customize

3.mature Technical support,Well-trained and professional technologist and sales with rich experience in the field for 5-10 years

4.Professional logistic support,Free sample and correct shipping documents dispatched according to regulations of different countries

All we want is win-win business. Send your inquiries, you will get it!

 

Why choose us:

1.Factory direct sales, so we can provide the competitive price and high quality product base on 5 years of production and R&D experience

2.It is available in stock for quick shipment. Products could be packaged according to customer’s specialized requirements.

3.The products can be transported by Courier, air or sea.

4.Customers will receive the most professional technical support and efficient service.

5.Any inquiries will be replied within 24hours.

6.High purity with test report.

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