Tetra sodium of 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid ( HEDP Na4)

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Origin:

China

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Telegraphic Transfer (T/T)

CAS No. 29329-71-3 ( x-Na) , 3794-83-0 ( 4-Na)
Dequest: 2016/ 2016DG
Molecular Formula: C2H4O7P2Na4
Molecular weight: 294
Properties:
Dequest 2016 is the sodium salt of Dequest 2010, HEDP? Na4 is an good scale inhibitor for calcium carbonate, it can be used in low pressure boiler water system, circulating water system, industrial and municipal cleaning water system and swimming pool.
The solid HEDP Na4 is white powder, soluble in water, easily deliquescence, suitable for use in winter and freezing districts. It is a kind of organophorphonic acid scale and corrosion inhibitor, can form stable complex with Fe, Cu and Zn ions, it can dissolve the oxides on metal surface, it has good scale and corrosion inhibition effect under 250 centigrade degrees.
HEDP Na4 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 Na4 is used as detergent for metal and nonmetal. In dyeing industry, HEDP? Na4 is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP? Na4 is used as chelating agent.
Specification:
Appearance: White powder; Colorless to light yellow transparent liquid
Active component( HEDP) ) % : 56.0 min; 20.3-21.7
Active component( HEDP Na4) % : 79.9 min; 29.0-31.0
Total phosphoric acid ( as PO43-) % : 52.0-54.0; 18.4-20.4
Fe ppm: 35.0 max; 20 max
Dry weight loss, % : 15 max; --
density( 20 centigrade degrees) g/ cm3: --; 1.26-1.36
PH: 11.0-12.0 ( 1% water solution) ; 10.0-12.0 ( as it)
Package and Storage:
For liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required. For solid: inner liner polyethylene ( PE) bag, outer plastic woven bag, or confirmed by clients. Storage for ten months in room shady and dry place.
Safety Protection:
Weak acidity, Avoid contact with eye and skin, once contacted, flush with water.

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