Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP·Na4)

Tetra Sodium Letsoai la 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP·Na4)

CAS No. 29329-71-3 (x-Na), 3794-83-0 (4-Na)

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CAS No. 29329-71-3 (x-Na), 3794-83-0 (4-Na) Synonyms: Tetrasodium etidronate

Foromo ea molek'hule: C₂H₄O₇P₂E se e₄ Boima ba molek'hule: 294

Foromo ea Sebopeho:

Thepa:

HEDP•Na₄ ke letsoai la sodium ea HEDP, HEDP•Na₄ ke sekala se setle sa inhibitor bakeng sa calcium carbonate, se ka sebelisoa tsamaisong ea metsi a boiler ea khatello e tlase, sistimi ea metsi a potolohang, sistimi ea metsi a hloekisang a indasteri le masepala le letamo la ho sesa.

The solid HEDP•Na₄ ke phofo e tšoeu, e qhibilihang ka metsing, e bonolo habonolo, e loketse ho sebelisoa literekeng tsa mariha le tse batang. Ke mofuta oa sekala sa organophorphonic acid le corrosion inhibitor, e ka theha e tsitsitseng e nang le Fe, Cu le Zn ions, e ka qhala li-oxide holim'a tšepe, e na le sekala se setle le phello e thibelang kutu tlas'a 250 ℃.

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 e sebelisoa joalo ka chelating agent.

Tlhaloso:

Lintho	Index
Ponahalo	Seedi se bonaletsang se se nang mmala ho isa ho bosehla	Phofo e tšoeu
Litaba tse sebetsang (HEDP)%	20.3-21.7	60.0 mets
Active content (HEDP•Na₄)%	29.0-31.0	85.0 mets
Kakaretso ea asiti ea phosphoric (joalo ka PO₄^3-) %	18.4-20.4	55.0 mets
Fe, mg/L	20.0 max	35.0 max
Mongobo,%	--	10.0 max
Boima ba 'mele (20℃)g/cm³	1.26-1.36	--
PH (1% ea tharollo ea metsi)	10.0-12.0	11.0-12.0