Diphosphonic Acid HEDP CAS No2809-21-4

• CAS No.: 2809-21-4
• Formula: C2h8o7p2
• EINECS: 220-552-8
• Type: Pharmaceutical Intermediates
• Appearance: Liquid
• Quality: Industrial
• Colour: Colorless
• Purity: 60%
• Usage: Electronics Chemicals, Water Treatment Chem
• Active Components (as HEDP) %: 60 Min
• Transport Package: Plastic Drums
• Specification: Packed in 250KG Plastic Drums or 1000KG IBC Drums
• Trademark: dongfang
• Origin: China
• HS Code: 2942000000
• Production Capacity: 800ton/Tons Per Month

Product Description

Lead time :
 

Quantity(kilograms)	1 - 1000	>1000
Lead time (days)	5-10	To be negotiated

Water Treatment HEDP 60%

Formula: C2H8O7P2

Cas No: 2809-21-4
EINECS: 220-552-8

 

Characteristic:

Miscible with water, still stable at high PH, low toxicity and no pollution, good scale inhibition below 200oC, easy decomposition above 250oC, acid and alkali resistant. It can form stable complexes with iron, copper, aluminium and zinc and other metal ions, and can dissolve metal surface oxides.

 

Use: scale inhibitor and corrosion inhibitor for boilers and heat exchangers, complexing agent for non-cyanide plating, cleaning agent for metals and non-metals, stabilizer and colour fixing agent in rinsing industry, scale
inhibitor and dispersant for circulating water system.

Specification
 

Appearance	Colourless to light yellow transparent liquid
Active components (as HEDP) %	≥60.0
Ca sequestration mg CaCO3/g	≥500
Phosphoric acid (Po4 ³-) %	≤0.8
Phosphorous acid (PO3 ³-) %	≤2.0
PH (1% water solution)	≤2.0
Fe (as Fe 2+ ), ppm	≤200
Chloride (as cl -), ppm	≤10.0
Hazen	≤50

Package and storage:

HEDP liquid is packed in plastic drums of 25kg or 250kg per drum;

HEDP solid is packed in plastic woven bags (lined with polyethylene bags), net weight 25kg per bag can also be determined according to user needs. Store in a cool and ventilated place indoors, protected from moisture and sunlight for a storage period of 10 months.

Safety protection: HEDP is acidic and should be avoided in contact with eyes, skin or clothing.

 

Certificate