HEDP,HEDP.NA2,HEDP.NA4,Sodium of HEDP

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Company Name Qingdao IRO-TAIHE Chemical Co., Ltd.
Membership Free member
Registration Date2010.01.06
Country/RegionChina
CityQingdao
Contact Sharon Li(Ms.)

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Qingdao IRO-TAIHE Chemical Co., Ltd.

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Category : Water Treatment Chemicals

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Description by Manufacturer

CAS No. 2809-21-4??????????????? ??? Dequest:2010

Molecular Formula: ?C₂H₈O₇P₂????????Molecular weight: 206.02

Structural Formula:

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

Properties:

HEDP is an organophosphoric acid corrosion inhibitor. HEDP can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.HEDP can dissolve the oxidized materials on these metals?surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250?? HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity,HEDP can be used as cleaning agent in electronic fields and as additives in daily chemicals.?/p>

Specification:

items	index
Appearance	Colorless or light yellow transparent liquid	White crystal powder
Active content??EDP???	58.0-62.0	89.0 min
Phosphorous acid??s PO₃^3-??	2.0 max	0.5 max
Phosphoric acid ??sPO₄^3- ??	0.8 max	0.5 max
Chloride (as Cl^-)%	0.01 max	0.01 max
pH????solution??/td>	2 max	2 max
Density ??0???g/cm³	1.40	?/td>
Fe ion ppm	10 max	20 max
Colour APHA (Hazen)	40 max	?/td>

Usage:

HEDP is used as 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. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.

Package and Storage:

HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.

Storage for ten months in room shady and dry place.

Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.??/p>

Related Keywords: HEDP , HEDP.Na2 , HEDP.Na4 , HEDP.Na , Sodium of HEDP , ATMP

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Company Profile

About Qingdao IRO-TAIHE Chemical Co., Ltd.

Membership Free member
Registration Date2010.01.06
Country/RegionChina
CityQingdao
Contact Sharon Li(Ms.)

About Us

(Please contact to sharon dot li at irochemical dot com)
Since established in 2003, IRO Group has been developing sharply. From the initial water treatment chemicals, IRO business now covers water treatment chemicals, biocides, surfactants, chelating agents, solvents, oil drilling chemicals, textile auxiliaries, paper-making additives and food additives. In 2011, the total turnover achieves USD 120 million.
IRO provide a comprehensive range of supply chain services in our chosen fields from production, sourcing, logistics to application for achieving more added-value.
With the hope to offer the maximum support and optimum service to international market, Qingdao Iro Taihe International was established in Qingdao, the second largest port of China, in 2008.

Selling Categories

- Chemicals >> Water Treatment Chemicals

Keywords

Water Treatment Chemicals , Food & Feed Additives , Fine Chemicals

Registration Date	2010/01/06(Year/Month/Date)
Buyer / Seller in EC21	Seller
Business Type	Manufacturer
Year established	1998
Employees total	101 - 500
Annual revenue	USD 5,000,001 - 10,000,000

Contact Information Order Credit Report

Company	Qingdao IRO-TAIHE Chemical Co., Ltd.
Address	NO.10 HongKong Middle RdQingdaoShandong 266071 China
Phone	86 - 0532 - 66888207
Fax	86 - 0532 - 85028486
Homepage	www.irochemical.com
Contact	Sharon Li / Manager

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HEDP,HEDP.NA2,HEDP.NA4,Sodium of HEDP

Description by Manufacturer

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Usage:

Package and Storage:

Safety Protection:

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