[ethylenebis[nitrilobis(methylene)]]tetrakisphosphonic acid, sodium salt
For Research Use Only.
Category
Corrosion and Scale Inhibitor
Cat.No.
WTA-034
CAS
22036-77-7
Product Name
[ethylenebis[nitrilobis(methylene)]]tetrakisphosphonic acid, sodium salt
Structure
Structure
Product Details
Catalog Water Technology
WTA-034
Synonyms
EDTMPS; SODIUM EDTMP; Sequion 30Na30; Einecs 244-742-5; Water quality stabilizer EDTMPS; Ethylene diamine tetramethylene phcsphonic acid Sodium
IUPAC Name
[2-[bis(phosphonomethyl)amino]ethyl-(phosphonomethyl)amino]methylphosphonic acid
Molecular Weight
524.05
Molecular Formula
C6H16N2O12P4.4Na
Canonical SMILES
C(CN(CP(=O)(O)[O-])CP(=O)(O)[O-])N(CP(=O)(O)[O-])CP(=O)(O)[O-].[Na+].[Na+].[Na+].[Na+]
InChI
InChI=1S/C6H20N2O12P4.4Na/c9-21(10,11)3-7(4-22(12,13)14)1-2-8(5-23(15,16)17)6-24(18,19)20;;;;/h1-6H2,(H2,9,10,11)(H2,12,13,14)(H2,15,16,17)(H2,18,19,20);;;;/q;4*+1/p-4
InChIKey
HWBBOUHGZNBHSW-UHFFFAOYSA-J
Boiling Point
546.04°C (rough estimate)
Melting Point
242°C
Purity
95%
Density
1.4353 g/mL (rough estimate)
EINECS
244-742-5
Properties
EDTMPS is a nitrogen-containing organic polybasic phosphonic acid, and belongs to cathodic corrosion inhibitors. Compared with inorganic polyphosphate, its corrosion rate is 3~5 times better than them. EDTMPS can be fully dissolved in water, innocuous and has none pollution to environment, with good chemical stability and thermal tolerance. EDTMPS shows excellent scale inhibition ability under temperature 200°C.
Storage
Storage in shady room and dry place.
pH of 1% solution
9.5-10.5
Application
EDTMPS can be used as 7310 in circulating cool water system and boiler water, as complexing agent in non-cyanogen electroplating industry, as chelating agent and oxygen bleaching stabilizer in textile printing and dyeing industry.
Appearance
Yellow to umber transparent liquid
Description
EDTMPS is a nitrogen-containing organic polybasic phosphonic acid, and belongs to cathodic corrosion inhibitors. Compared with inorganic polyphosphate, its corrosion rate is 3~5 times better than them.
Refractive Index
1.5300 (estimate)
Safety Protection
Avoid contact with eye and skin, once contacted, flush with water.
Chloride
2.0 max
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