Eienskappe:

HEDP is 'n organofosforsuur-korrosie-inhibeerder. Dit kan chelaat met Fe-, Cu- en Zn-ione om stabiele chelaatvormende verbindings te vorm. Dit kan die geoksideerde materiale op hierdie metale se oppervlaktes oplos. HEDP toon uitstekende skaal- en korrosie-inhibisie-effekte onder temperatuur 250 ℃. HEDP het goeie chemiese stabiliteit onder hoë pH-waarde, moeilik om gehidroliseer te word, en moeilik om onder gewone lig- en hittetoestande ontbind te word. Sy suur-/alkali- en chlooroksidasieverdraagsaamheid is beter as dié van ander organofosforsure (sout). 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.

Die vaste toestand van 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.

Spesifikasie:

Items	Indeks
Voorkoms	Helder, kleurlose tot liggeel waterige oplossing	Wit kristalpoeier
Aktiewe inhoud (HEDP), %	58-62	90.0 min
Aktiewe inhoud (HEDP·H₂O), %	-	98.0 min
Fosforsuur (as PO₃^3-), %	2,0 maksimum	0,8 maksimum
Fosforsuur (as PO₄^3-), %	0,8 maksimum	0,5 maksimum
Chloried (as Cl^-)%	0,02 maksimum	0,01 maksimum
pH (1% wateroplossing)	2,0 maksimum	2,0 maksimum
Digtheid (20℃), g/cm³	1.40 min	-
Fe, mg/L	20,0 maksimum	10,0 maksimum
Kleur APHA (Hazen)	40,0 maksimum	-
Ca-sekwestrasie (mg CaCO₃/g)	500.0 min

Gebruik:

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.

Verpakking en berging:

HEDP liquid: 200L plastic drum,IBC(1000L),customers’ requirement.

HEDP solid: 25kg/bag,customers’ requirement.

Berging vir twaalf maande in kamer skaduryke en droë plek.

Veiligheid en beskerming:

HEDP is suur. Gee aandag aan arbeidsbeskerming tydens operasie. Vermy kontak met oë en vel. As dit op die liggaam spat, spoel dadelik met baie water uit.