Bán hóa chất 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)

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hóa chất chống cáu cặn ăn mòn
hóa chất 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
CAS No. 2809-21-4 Dequest: 2010
Molecular Formula: C2H8O7P2
Molecular weight:206.02
HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals’ surfaces. HEDP shows excellent scale and corrosion
inhibition effects under temperature 250℃. HEDP has good chemical stability under high pH value, hard to be hydrolyzed,
and hard to be decomposed under ordinary light and heat conditions.The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.
Specification:

items index
Appearance Colorless or light yellow transparent liquid
Active content(HEDP)% 58.0-62.
Phosphorous acid(as PO33-)% 2.0max
Phosphoric acid (as PO43 )% 0.8max
Chloride (as Cl-)% 0.01max
pH(1% solution) 2max
Density (20℃)g/cm3 1.40
Fe,mg/L 10max
Colour APHA (Hazen) 40max
White crystal powder
Active content(HEDP)% 90.0min
Phosphorous acid(as PO33-)% 0.5max
Phosphoric acid (as PO43 )% 0.5max
Chloride (as Cl-)% 0.01max
pH(1% solution) 2max
Density (20℃)g/cm3 1.40
Fe,mg/L 5max
Usage:
HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent.
Package and Storage:
HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required, 25kg /drum
LH: 0912.635.075
Zalo: 0912.635.075
Email:
vanhong.201089@gmail.com
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