HEDP 4Na CAS 3794-83-0

Description

HEDP 4Na?Quick Details
Chemical Name: HEDP 4Na
Other Name: HEDP Na4, (1-Hydroxyethylidene)bis-phosphonic acid tetrasodium salt
CAS No.: 3794-83-0
Molecular Fomula: ?C2H4Na4O7P2
Chemical Structure:
Molecular weight: 293.96
Appearance: White powder/Colorless Liquid
HEDP 4Na (Powder) Typical Properties

Item
Specification

Appearance
White powder

Active Content (as HEDP)%
56.0MIN

Active Content (as HEDP 4na)%
80MIN

Total phosphoric acid (as PO43-)%
52MIN

PH(1% water solution)
11~12

?Iron ppm
20MAX

Dry Weigh loss (Moisture)%
15MAX

HEDP 4Na (Liquid) Typical Properties

Item
Specifications

Appearance
Colorless or pale yellow transparent liquid

Active Content (as HEDP)%
20.3-21.7

Active Content
(as HEDP.Na4)%
29.0-31.0

pH
10.0-?12.0

Iron, ppm
20 max

Density @20???,??g/cm3
1.26-?1.36

HEDP 4Na Usage
Can be complexed with a variety of metal ions.
Used as scale inhibitor in cooling water and boiler water treatment. Good heat resistance. It still has a good effect at 200??.
Can also be used as corrosion inhibitor, cyanide-free plating additive.
HEDP 4Na (Powder) Shelf?Life, Package and Delivery
Shelf life: 12 months from date of manufacture in original unopened packaging stored in a cool
Storage: dry place out of direct sunlight.
Package: 25 bag or drum.
Delivery as hazard?8 product.
HEDP 4Na (Liquid) Shelf?Life, Package and Delivery
Shelf life: 12 months from date of manufacture in original unopened packaging stored in a cool
Storage: dry place out of?direct?sunlight.
Package: 250 drum,?1250kg drum.
Delivery as hazard?8 product.