Tetra Sodium Salt of 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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Nomer CAS 29329-71-3 (x-Na), 3794-83-0 (4-Na) Sinonim: Tetrasodium etidronate

Formula Molekul: C₂H₄O₇P₂wis₄ Bobot molekul: 294

Formula Struktural:

Properti:

HEDP• Ing₄ yaiku uyah natrium saka HEDP, HEDP• Ing₄ minangka inhibitor skala sing apik kanggo kalsium karbonat, bisa digunakake ing sistem banyu boiler tekanan rendah, sistem sirkulasi banyu, sistem banyu reresik industri lan kotamadya lan kolam renang.

The solid HEDP•Na₄ iku bubuk putih, larut ing banyu, gampang deliquescence, cocok kanggo nggunakake ing mangsa lan beku distrik. Iku jenis ukuran asam organophorphonic lan inhibitor karat, bisa mbentuk Komplek stabil karo ion Fe, Cu lan Zn, bisa dissolve ing oksida ing lumahing logam, wis ukuran apik lan efek inhibisi karat ing 250 ℃.

HEDP• Ing₄ 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 digunakake minangka agen chelating.

Spesifikasi:

barang	Indeks
Penampilan	Cairan transparan sing ora ana warna nganti kuning	Wêdakakêna putih
Konten aktif (HEDP)%	20.3-21.7	60,0 min
Konten aktif (HEDP•Na₄)%	29.0-31.0	85,0 min
Total asam fosfat (minangka PO₄^3-) %	18.4-20.4	55,0 min
Fe, mg/L	20.0 maks	35.0 maks
Kelembapan%	--	10.0 maks
Kapadhetan (20 ℃) g / cm³	1.26-1.36	--
PH (larutan banyu 1%)	10.0-12.0	11.0-12.0