خاصيتون:

ايڇ ڊي پي هڪ organophosphoric امل corrosion inhibitor آهي. اهو Fe، Cu، ۽ Zn آئنز سان چيليٽ ڪري سگهي ٿو مستحڪم چيليٽنگ مرڪب ٺاهڻ لاءِ. اهو انهن دھاتن جي سطحن تي آڪسائيڊ ٿيل مواد کي ٽوڙي سگهي ٿو. ايڇ ڊي پي گرمي پد 250 ℃ هيٺ شاندار پيماني ۽ corrosion inhibition اثرات ڏيکاري ٿو. ايڇ ڊي پي اعلي pH قدر جي تحت سٺي ڪيميائي استحڪام آهي، هائيڊولائز ٿيڻ ڏکيو آهي، ۽ عام روشني ۽ گرمي جي حالتن ۾ خراب ٿيڻ ڏکيو آهي. ان جي تيزاب/الڪلي ۽ ڪلورين آڪسائيڊيشن رواداري ٻين آرگنوفاسفورڪ اسيد (نمڪ) کان بهتر آهي. HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

جي مضبوط حالت HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.

تفصيل:

شيون	انڊيڪس
ظاهر	صاف، بي رنگ کان پيلي پيلو آبي حل	اڇو ڪرسٽل پائوڊر
فعال مواد (HEDP)،٪	58-62	90.0 منٽ
فعال مواد (HEDP·H₂او)٪	-	98.0 منٽ
فاسفورس تيزاب (جيئن PO₃^3-), %	2.0 وڌ ۾ وڌ	وڌ ۾ وڌ 0.8
فاسفورڪ اسيد (جيئن PO₄^3-), %	وڌ ۾ وڌ 0.8	وڌ ۾ وڌ 0.5
ڪلورائڊ (جيئن Cl^-)%	وڌ ۾ وڌ 0.02	وڌ ۾ وڌ 0.01
پي ايڇ (1٪ پاڻي جو حل)	2.0 وڌ ۾ وڌ	2.0 وڌ ۾ وڌ
کثافت (20 ℃)، g/cm³	1.40 منٽ	-
Fe، mg/L	20.0 وڌ ۾ وڌ	10.0 وڌ ۾ وڌ
رنگ APHA (Hazen)	وڌ ۾ وڌ 40.0	-
Ca Sequestration (mg CaCO₃/g)	500.0 منٽ

استعمال:

HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.