CAS 2809-21-4 HEDP 60% 90% CAS NO.2809-21-4

Min.Order Quantity:: 25 Kilogram

Purity:: 50% 60% 90%

Port:: Qingdao

Payment Terms:: L/C,D/A,D/P,T/T,MoneyGram

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Product Details

Keywords

2809-21-4
HEDP 60%
1-Hydroxyethylidene-1,1-diphosphonic acid

Quick Details

ProName: CAS 2809-21-4 HEDP 60% 90%
CasNo: 2809-21-4
Molecular Formula: C2H8O7P2
Appearance: colorless and clear liquid
Application: HEDP is used as scale and corrosion in...
DeliveryTime: within one week after payemnt confirme...
PackAge: HEDP liquid: 250Kgnet in plastic drum....
Port: Qingdao
ProductionCapacity: 2000 Metric Ton/Year
Purity: 50% 60% 90%
Storage: stored in cool and dry place
Transportation: by sea,by air,by express
LimitNum: 25 Kilogram
Grade: Industrial Grade,Pharma Grade
PH(1% solution): 1.5-2.0

Superiority

hedp is an organophosphoric acid corrosion inhibitor. it can chelate with fe, cu, and zn ions to form stable chelating compounds.it can dissolve the oxidized materials on these metals’ surfaces. hedp shows excellent scale and corrosion inhibition effects under temperature 250℃. hedp has good chemical stability under high ph value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). 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.

Details

specifications items	gb/t26324-2010		hg/t3537-2010
appearance	colorless to pale yellow transparent liquid		white powder solids
active content (as hedp), %	50.0 min	60.0 min	90.0 min
phosphorous acid (as po33-), %	2.0 max	2.0 max	0.80 max
phosphoric acid (aspo43-), %	0.8 max	0.8 max	0.50 max
chloride (as cl-), ppm	0.1 max	0.1 max	0.1 max
ph (1% solution)	1.5-2.0	1.5-2.0	1.5-2.0
density (20°c), g/cm3	1.34 min	1.40 min	——
active content (as hedp·h2o), %	——	——	98.0 min
calcium chelating value, mg/g	450 min	500 min	800 min
fe (as fe3+), mg/l	10 max	10 max	5 max