1 Hydroxyethylidene 1,1 diphosphonic acid / HEDP 90% powder CAS 2809 21 4

Product Overview

Description

HEDP 90% powder

 

HEDP 90% powder Quick Details

 

Chemical Name:HEDP 90% powder

Synonyms: 1-Hydroxyethylidene-1,1-diphosphonic acid

CAS No.: 2809-21-4

Molecular Fomula:C2H8O7P2

Molecular weight: M=206.03

EINECS No.:220-552-8

Appearance:White crystal

 

HEDP 90% powder Typical Properties

 

Item	HEDP
Appearance	Withe crystal powder
Active content(HEDP)%	90.0min
Active content(HEDP.H2O)%	98.0min
Chloride(as Cl-)%	50max
PH (1% solution)	2.0max
Fe,mg/L	5.0max
Phosphoric acid(as PO3³‾)	0.8max
Phosphoric acid(as PO4³‾)	0.5max

 

HEDP 90% powder Application

 

1.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..

2.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;

3.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.

4.Usually, HEDP is used together with polycarboxylic acid. 

 

HEDP 90% powder Packaging and Storage

 

Packaging:25KG/ bag. Compound cowhide paper bag, lined.