Packaging and Delivery
1.1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
2.Cas no.: 2809-21-4
3.Active content (HEDP) :58.0-62.0%
4.organic phosphonic acid,scale&corrosion inhibitor
5.purity 60% and 90%
6.CAS NO. 2809-21-4
7.used in water treatment and auxiliary agent
Appearance: clear,water-white to pale yellow solution
Active Content (as hedp): 60.00%
Phosphorous acid (as PO33-):2.0% max.
Phosphoric acid (as PO43-):0.8% max.
Chlorides (as Cl-):1.0% max.
PH(1% water solution at 25): 1.0-2.0
Iron: 20ppm max.
Color : 80 Hazen Max
Specific gravity (at 20):1.41-1.46
Ca2+ Sequestration, (as CaCO3 mg/g ): 450 Min
Corrosive. avoid contact with eyes and skin.
UN No.: 3265
HEDP is an organic phosphonic acid corrosion inhibitor and scale, with iron, copper, zinc and other metal ions to form a stable complex, to dissolve the surface of metal oxide. In the next 250 °C still play a good role in corrosion and scale inhibitors in high pH stability is still under difficult to hydrolysis, light and heat conditions in general difficult to break down. Acid, oxidation-resistant than other organic acid (salt) good. With metal ions in the water, in particular the formation of six calcium chelate ring, and thus be better and have the effect of scale soluble obvious effects are limited, and other water treatment agent using the compound has shown the desired synergy .
HEDP solid belong to high-purity products, applies to the winter cold regions; particular, the electronics industry apply to the cleaner use of chemicals and additives day.
The quality indicators in line with HG / T 3537-1999
Shandong Huayou Chemistry Co., Ltd. was founded in 1992, located in Jinan Shandong China.We have been in water treatment chemicals more than 20 years
At present, our main products are scale and corrosion inhibitor for example:HEDP liquid, HEDP solid, ATMP liquid, ATMP solid, DTPMPA, EDTMPS, PBTCA, HEDP.NA, ATMP.NA,HPMA and so on. Now our products have been export USA, France, Japan, India, Indonesia and so on more than 20 countries. Because of the high quality and the best price, we get a good reputation from our customs.
Send Supplier a Message
Not a Member?
Already a member? Sign In