Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic AcidÂ
(HEDPNa4)
CAS No.: 3794-83-0
Molecular Formula: C2H4O7P2Na4 Molecular weight: 294
Properties:
HEDP Na4 is an good scale inhibitor for calcium carbonate, it can be used in low pressure boiler water system, circulating water system, industrial and municipal cleaning water system and swimming pool.
HEDPNa4 is widely used in circulating cool water system, medium and low pressure boiler, oil field water pipelines as scale and corrosion inhibitor.
Specification:
items index
Appearance White powder Colorless to light yellow transparent liquid
Active component (HEDP)Â %Â 56.0 min 20.3-21.7
Active component )HEDPNa4) % 79.9 min 29.0-31.0
Total phosphoric acid (as PO43-)Â % 52.0-54.0 18.4-20.4
Fe ppm 35.0 max 20 max
Dry weight loss, % 15 max --
Density (20??)Â g/cm3 -- 1.26-1.36
PH 11.0-12.0 (1% water solution) 10.0-12.0 (as it)
Â
Packing and Storage:
For liquid: Normally 250kg net in drum, IBC, or per customers. For solid: inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients. Storage for ten months in shady room and dry places.
Safety Protection:
Weak acidity, Avoid contact with eye and skin, once contacted, flush with water immediately.
Supplier: HEDP NA4 liquid
Supplier: Our products are often used in oilfield reinjection water systems, oilfield refill water systems, circulating cool water systems, other fields.
our available water treatment chemicals and polymers are as below,
organic phosphonate: hedp, atmp, pbtca, dtpmpa, papemp, hpaa, bhmtpmpa, atmpâ?¢na4 etc. (similar to dequest series)
crystal solid hedp, hedp.na4 and solid atmp, solid amps, solid phosphorous acid, solid pesa, solid ma/aa
polymers: pca, pso, paa, ma/aa, aa/amps, 3100, hpma (hydrolyzed / solvent route based), pesa
special polymers: products equivalent to dow acumer series; akzo nobel auatreat series; belsperse series; belclene series; buckman series; bellasol series, sokalan series
biocide and algicide: ddbac/bkc, dbnpa, ddac, cmit/mit(isothiazolinones), bta, tta, glutaraldehyde, thps,sodium chlorite,sdic, tcca, ipa
oxygen scavenger: carbohydrazide, cyclohexylamine, morpholine, hydrazine hydrate
other: phosphoric acid, shpp, phosphorous acid, nmp, sles, edta, deha, th
