CAS No. 23605-74-5
Molecular Formula: C10H28N2O12P4
Molecular Weight: 492.3
Structural Formula:
Properties:
HMDTMPA is a white crystal
powder at room temperature, slightly soluble in water, with
solubility less than 5%.
HMDTMPA can inhibit most scale
formation such as calcium carbonate, calcium sulfate, barium
sulfate and ferric oxide. As water treatment chemicals,
HMDTMPA is used as scale inhibitors for calcium sulfate
and barium sulfate, for calcium sulfate in particular. It
has high scale inhibition rate and can last for long
effective time.
HMDTMPA can be used for crush
treatment in oilfield and for water treatment in boiler.
Specification:
| Items |
Index |
| Appearance |
White crystal powder |
| Active component
(as HDTPMA-)
% |
97.0 min |
| chloride (Cl-)% |
0.5
max |
| pH (1% water solution) |
2.0
max |
| Fe，mg/L |
35
max |
Package and Storage:
25Kg/bag or customers' requirement. Storage for ten months in shady room and dry place.
Synonyms:
HMDTMPA;
HDTMP; HDTMPA;
HDTMP(A);
HexaMethyleneDiamineTetra(MethylenePhosphonic Acid);
HexaMethyleneDiamineTetra
(MethylenePhosphonic Acid) HMDTMPA;
Hexamethylenediaminetetrakis-(methylenephosphonic acid)
