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

1-gidroksietiliden-1,1-difosfonik kislotaning tetra natriy tuzi (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

Molekulyar formula: C₂H₄O₇P₂Allaqachon₄ Molekulyar og'irligi: 294

Strukturaviy formula:

Xususiyatlari:

HEDP•Na₄ ning natriy tuzidir HEDP, HEDP•Na₄ kaltsiy karbonat uchun yaxshi shkala inhibitori bo'lib, u past bosimli qozonli suv tizimida, aylanma suv tizimida, sanoat va shahar tozalash suv tizimida va suzish havzasida ishlatilishi mumkin.

The solid HEDP•Na₄ oq kukun, suvda eriydi, oson deliquescence, qish va muzlash tumanlarida foydalanish uchun mos. Bu organoforfonik kislota shkalasi va korroziya inhibitori bo'lib, Fe, Cu va Zn ionlari bilan barqaror kompleks hosil qilishi mumkin, metall yuzasida oksidlarni eritishi mumkin, 250 ℃ ostida yaxshi shkala va korroziyaga qarshi ta'sirga ega.

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 xelatlashtiruvchi vosita sifatida ishlatiladi.

Spetsifikatsiya:

Elementlar	Indeks
Tashqi ko'rinish	Rangsizdan sarg'ish ranggacha bo'lgan shaffof suyuqlik	Oq kukun
Faol kontent (HEDP)%	20.3-21.7	60,0 min
Active content (HEDP•Na₄)%	29.0-31.0	85,0 min
Umumiy fosfor kislotasi (PO₄^3-) %	18.4-20.4	55,0 min
Fe, mg/l	20,0 maks	35,0 maksimal
Namlik,%	--	10,0 maks
Zichlik (20℃)g/sm³	1.26-1.36	--
PH (1% suv eritmasi)	10.0-12.0	11.0-12.0