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

Tetra Sodium Tote o te 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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Te whakataki taipitopito

Nama CAS 29329-71-3 (x-Na), 3794-83-0 (4-Na) Nga kupu taurite: Tetrasodium etidronate

Tātai rāpoi: C₂H₄O₇P₂Kua₄ Te taumaha ngota: 294

Tātai Hanganga:

Āhuatanga:

HEDP•Kei₄ ko te tote konutai o HEDP, HEDP•Kei₄ he aukati tauine pai mo te konupūmā warowaihā, ka taea te whakamahi i roto i te punaha wai kohua iti, te punaha wai rere, te punaha wai horoi ahumahi me te taone me te puna kaukau.

The solid HEDP•Na₄ he paura ma, he rewa ki te wai, he ngawari te whakaheke, he pai mo te whakamahi i te takurua me te rohe mīti. Ko te ahua o te tauine waikawa organophorphonic me te aukati waikura, ka taea te hanga matatini me nga katote Fe, Cu me Zn, ka taea te whakakore i nga waikura i runga i te mata whakarewa, he pai te tauine me te painga o te aukati i raro i te 250 ℃.

HEDP•Kei₄ 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 ka whakamahia hei kaihoko chelating.

Whakatakotoranga:

Nga taonga	Taurangi
Te ahua	Te wai kore tae ki te kowhai kowhai	Te paura ma
Ihirangi hohe (HEDP)%	20.3-21.7	60.0 min
Ihirangi hohe (HEDP•Na₄)%	29.0-31.0	85.0 min
Te waikawa phosphoric katoa (hei PO₄^3-) %	18.4-20.4	55.0 min
Fe, mg/L	20.0 mōrahi	35.0 te teitei
makuku，%	--	10.0 mōrahi
Kiato (20 ℃)g/cm³	1.26-1.36	--
PH (1% wairewa wai)	10.0-12.0	11.0-12.0