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

Formula Molekul: C₂H₄O₇P₂Geus₄ Beurat molekul: 294

Formula Struktural:

Pasipatan:

HEDP• Dina₄ nyaéta uyah natrium tina HEDP, HEDP• Dina₄ mangrupa inhibitor skala alus keur kalsium karbonat, éta bisa dipaké dina sistem cai alat keur ngagolakkeun tekanan low, sistem sirkulasi cai, sistem cai beberesih industri jeung kota jeung kolam renang.

The solid HEDP•Na₄ nyaeta bubuk bodas, leyur dina cai, gampang deliquescence, cocog pikeun pamakéan dina usum tiris jeung katirisan distrik. Ieu mangrupakeun jenis skala asam organophorphonic jeung inhibitor korosi, bisa ngabentuk kompléks stabil kalayan ion Fe, Cu jeung Zn, éta bisa ngaleyurkeun oksida dina beungeut logam, éta boga skala alus tur pangaruh inhibisi korosi dina 250 ℃.

HEDP• Dina₄ 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 dipaké salaku agén chelating.

spésifikasi:

Barang	Indéks
Penampilan	Cairan transparan teu warnaan nepi ka konéng	Bubuk bodas
Kandungan aktip (HEDP)%	20.3-21.7	60,0 mnt
Kandungan aktif (HEDP•Na₄)%	29.0-31.0	85,0 mnt
Total asam fosfat (sakumaha PO₄^3-) %	18.4-20.4	55,0 mnt
Fe, mg/L	20,0 max	35,0 max
Uap %	--	10,0 max
Kapadetan (20 ℃) g / cm³	1.26-1.36	--
PH (1% larutan cai)	10.0-12.0	11.0-12.0