Corrosion Inhibitor HEDP 2809-21-4

离岸价格

Get Latest Price

200 ~ 350 / Metric Ton

1 Metric Ton Minimum Order

国:

China

モデル番号:

离岸价格:

200 ~ 350 / Metric Ton （交渉可能） Get Latest Price

ロケーション:

Weifang,China

最低注文量の価格:

200 per Metric Ton

最低注文量:

1 Metric Ton

パッケージの詳細:

HEDP solid: 25kg/bag, customersÃ¢ï¿½ï¿½ requirement

納期:

3-5 working days

供給能力:

3000 Metric Ton per Month

支払いタイプ:

T/T, L/C, Western Union, Other

製品グループ :

Phosphonates Antiscalants

今すぐお問い合わせください

Shouguang Starail Economic and Trade Co., LTD

China

無料会員

連絡先担当者 Matthew

Weifang, Shandong

今すぐお問い合わせください

製品仕様

タイトルまたは説明

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
(HEDP) CAS No. 2809-21-4
Molecular Formula: C2H8O7P2 Molecular weight: 206.02
Structural Formula:
Properties: HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals surfaces.HEDPshows excellent scale and corrosion inhibition effects under temperature 250â„ƒ.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 ofHEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals. Specification:

Items	Index
Appearance	Clear, Colorless to pale yellow aqueous solution	White crystal powder
Active content (HEDP)%	60.0 min	90.0 min
Active content (HEDP·H2O)%	-	98.0 min
Phosphorous acid (as PO33-)%	1.0 max	0.8 max
Phosphoric acid (as PO43- )%	0.6 max	0.5 max
Chloride (as Cl-)%	0.01 max	0.01 max
pH (1% water solution)	2.0 max	2.0 max
Density (20â„ƒ)g/cm3	1.40 min	-
Fe, mg/L	10.0 max	5.0 max
Colour APHA (Hazen)	10.0 max	-
Ca sequestration (mg CaCO3/g)	500.0 min

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: 200L plastic drum,IBC(1000L),customers requirement.
HEDP solid: 25kg/bag,customers requirement.
Storage for twelve months in room shady and dry place.

国:	China
モデル番号:	-
离岸价格:	200 ~ 350 / Metric Ton （交渉可能） Get Latest Price
ロケーション:	Weifang,China
最低注文量の価格:	200 per Metric Ton
最低注文量:	1 Metric Ton
パッケージの詳細:	HEDP solid: 25kg/bag, customersÃ¢ï¿½ï¿½ requirement
納期:	3-5 working days
供給能力:	3000 Metric Ton per Month
支払いタイプ:	T/T, L/C, Western Union, Other
製品グループ :	Phosphonates Antiscalants