羥基亞乙基二膦酸

價(jià)格	詢價(jià)
包裝	250kg net /Plastic Drum，80 drums / 20FCL

最小起訂量	250kg net /Plastic Drum，80 drums / 20FCL
發(fā)貨地	湖北
更新日期	2011-07-11

產(chǎn)品詳情

中文名稱:羥基亞乙基二膦酸	英文名稱:Hydroxy Ethylidene Diphosphonic Acid（HEDP）
CAS:2809-21-4	有效期: 一個(gè)月

Hydroxy Ethylidene Diphosphonic Acid（HEDP）

CODE: LH-101 【CAS】 2809-21-4

Alias: 1-Hydroxy Ethidene -1,1-Diphosphonic Acid Dequest:2010

Molecular Formula: C₂H₈O₇P₂ Molecular weight: 206.03

Structure:

Properties

HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn etc. metal ions and form stable complex compound. It can dissolve the oxidized materials on these metals’ surfaces. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. 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.

Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.

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Items

HEDP

Appearance

Colorless or light yellow transparent liquid

Active content（HEDP）％

60.0min

Phosphorous acid（as PO₃^3-）%

2.0 max

Phosphoric acid （asPO₄³）%

0.8 max

Chloride (as Cl^-)%

0.5 max

Sequestrant value(CaCO₃)mg/g

500 max

pH（1％ solution）

2.0 max

Density （20℃）g/cm³

1.44 min

Iron, as Fe (ppm)

10 max

Colour APHA (Hazen)

80 max

Storage for ten months in room shady and dry place.

關(guān)鍵字： HEDP, water treatment chemicals, water treatment agents

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