Etidronate Disodium HEDP. Na2 CAS: 7414-83-7

• Customization: Available
• CAS No.: 7414-83-7
• Formula: C2h9nao7p2
• Model NO.: 7414-83-7
• EINECS: 231-025-7
• Color: Colourless to Slightly Yellow or White
• Appearance: Liquid Solid
• Type: Industrial Circulating Water Treatment Agent
• MW: 230.02
• Sample: Support
• Storage: Yes
• Melting Point: >300 °c
• Storage Conditions: 15-25 °c
• Solubility: H2O:26 Mg/Ml
• Transport Package: Bag or Drum
• Specification: 25kg/BAG, 30kg or 250kg / barrel
• Trademark: Future Chemical
• Origin: China Shandong

Product Description

Disodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na₂)
CAS No.  7414-83-7
Molecular Formula: C₂H₆O₇P₂Na₂      
Molecular weight: 250

Product Description

1. Properties:
HEDP•Na₂ is an organophosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions, it can dissolve the oxidized materials, it has good scale and corrosion inhibition effects even under 250ºC, it is stable under high pH value, not easy to be hydrolyzed, not easy to be decomposed under normal light and heat condition, its acid/alkaline and chloride oxidation tolerance are better than that of other organophosph-onic acids. HEDP•Na₂ can form six-ring chelating compounds with metal ions in water system, Ca2+ in particular. HEDP•Na₂ has good scale inhibition effects and obvious dissolution threshold effects. When used with other Water Treatment Chemicals, the synergistic effects is better.

2. Usage:
HEDP•Na₂ is widely used in circulating cool water system, medium and low pressure boiler, oil field water pipelines as scale and corrosion inhibitor in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP•Na₂ is used as detergent for metal and nonmetal. In dyeing industry, HEDP•Na₂ is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP•Na₂ is used as chelating agent.

Product Parameters

Items	Index
Appearance	Colorless to light yellow transparent liquid	White powder
Active content (HEDP) %	16.5 min	74.0-79.0
Active content (HEDP•Na2) %	20.0 min	89.8-95.8
Density (20ºC)g/cm^3	1.12-1.22	--
Fe, mg/L	--	20.0 max
Moisture,%	--	3.0-6.0
PH (1% water solution)	4.0-6.0	4.0-6.0

Packaging & Shipping

Liquid: 200L plastic drum, IBC(1000L),customers' requirement. Storage for twelve months in shady room and dry place.

Solid: 25kg/bag, customers' requirement. Storage for ten months in shady room and dry place.
Weak acidity, Avoid contact with eye and skin, once contacted, flush with water.

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