HEDP 60%/CAS 2809 21 4/Water Treatment Chemicas/Corrosion Inhibitor

Synonyms

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid;

CAS Number

2809-21-4

Einecs Number

220-552-8

HS number

29319019.90

Hazard class/UN No./Packaging

8/ 3265/ III

Molecular Formula

C₂H₈N₃O₇P₂

Molecular weight

206.02

Product Grade

Industrial

Description

& Application

A scale and synergistic corrosion inhibitor for iron rust and mineral scale from pipes of cooling circulation water units and boilers; Metal chelate agent for color fixing and bleaching in textile; Complexing agent for electron plate and scale cleaning agent for metals.

Specification

Active content (as acid)% : 58.0-62.0

Phosphorous acid(as PO₃^3-) %:≤2.5

Phosphoric acid(as PO₄^3-)%: ≤0.7

Chloride (as Cl^-) %: ≤0.50

pH(1% solution): ≤ 2.0

Density(20°C) g/cm³ : 1.39 – 1.49

Calcium sequestration mg/g: ≥500

Appearance:colorless to pale yellow transparent liquid

Package

250kg/Drum, 1.25MT/ IBC or Bulk. Stored in cool and dry place.

Shelf Life

1 year.