1 Performance
HEDP • Na4 is the sodium salt of HEDP is an excellent calcium carbonate scale inhibitors, HEDP • Na4 is mainly used for low pressure boiler water, circulating water treatment, industrial and municipal clean water, swimming pool sterilization of metal corrosion. HEDP • Na4 is white powder solid, soluble in water, does not absorb moisture, easy to transport, suitable for use in cold conditions. HEDP • Na4 bisphosphonates are organic corrosion inhibitor, with iron, copper, zinc and other metal ions to form stable complexes, can dissolve metal oxide surfaces. Corrosion and scale still plays a good role in 250 ℃. HEDP • Na4 is widely used in electric power, chemical industry, metallurgy, fertilizer and other industrial cooling water, low pressure boiler, oil field water pipelines as scale and corrosion inhibition; HEDP • Na4 in the textile industry, can be used for cleaning metal and nonmetal agents, peroxide stabilizer and fixative printing and dyeing industry, non-cyanide plating complexing agents, chemicals additives.
2 Quality Index
Project
|
Index
|
|
Exterior
|
Colorless to pale yellow transparent liquid
|
White powder
|
Active component (HEDP)%
|
20.3-21.7
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≥ 56.0
|
Active component (with HEDP • Na4 meter)%
|
29.0-31.0
|
≥ 79.9
|
Total phosphorus (PO4) content%
|
18.4-20.4
|
52.0-54.0
|
Iron (Fe) content ppm ≤
|
20
|
35.0
|
Loss on drying% ≤
|
-
|
15
|
Density (20 ℃) g / cm
|
1.26-1.36
|
-
|
PH Zhi
|
10.0-12.0 (dope)
|
10.5-12.0 (1% solution)
|
3 application and use of the
HEDP • Na4 liquid plastic barrel, 30kg or 250kg, HEDP • Na4 solid polyethylene bags lined plastic woven bag, net weight 25kg, can be determined according to user needs. Stored in a cool room, storage period of ten months.