Codex^®  661

Applications

Cooling Water Treatment, Textiles, Sugar Processing, Dyes, Soaps & Detergents, Oilfields, Peroxide Bleaching.

Chemical name

1 Hydroxythylidene 1, 1-diphosphonic acid

Abbreviation   

HEDP

CAS No.

2809-21-4

Formula

C₂P₂O₇H₈

Molecular weight

206

Physical Properties

Appearance    

Colorless to pale yellow clear liquid

Typical Specifications

Active acid

60% min.

Specific gravity at 25^oc

1.44 ± 0.01

pH of 1% solution

Less than 2

Iron content as Fe

20 ppm max.

Chloride as Cl

0.1 % max.

Sequestering value at pH11

Min. 520 mg of CaCO₃  per gm of product

Packaging

Unit pack

40 kg HDPE carboy, 250 kg HMHD drum, ISO tanks, IBC Packing. UN approved for ocean carriage.

Quantity per 20 feet FCL

20 MT

UN No.

3265

IMCO class    

8

Packing Group

III