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

Tetra Sodium ntsev ntawm 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

Molecular Formula: C₂H₄O₇P₂Twb₄ Molecular Luj: 294

Cov qauv qauv:

Khoom:

HEDP•Na₄ yog sodium ntsev HEDP, HEDP•Na₄ yog ib qho zoo scale inhibitor rau calcium carbonate, nws yuav siv tau nyob rau hauv tsis tshua muaj siab boiler dej system, circulating dej system, industrial thiab municipal tu dej system thiab ua luam dej pas dej ua ke.

The solid HEDP•Na₄ yog hmoov dawb, soluble hauv dej, yooj yim deliquescence, haum rau siv nyob rau hauv lub caij ntuj no thiab khov cheeb tsam. Nws yog ib hom organophorphonic acid nplai thiab corrosion inhibitor, tuaj yeem tsim kev ruaj khov nrog Fe, Cu thiab Zn ions, nws tuaj yeem yaj cov oxides ntawm cov hlau nto, nws muaj cov nplai zoo thiab cov nyhuv corrosion hauv qab 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 yog siv los ua tus neeg sawv cev chelate.

Specification:

Cov khoom	Index
Qhov tshwm sim	Colorless rau yellowish pob tshab kua	Dawb hmoov
Cov ntsiab lus nquag (HEDP)%	20.3-21.7	60,0 min
Active content (HEDP•Na₄)%	29.0-31.0	8 5,0mn
Tag nrho phosphoric acid (raws li PO₄^3-) %	18.4-20.4	55,0 nqi
Fe, mg/L	max 20.0 Nws	35.0 max
Cov dej noo,%	--	10.0 max
Qhov ceev (20 ℃) g / cm3³	1.26-1.36	--
PH (1% dej tov)	10.0-12.0	11.0-12.0