CAS No.  23605-74-5
					
Molecular Formula: C10H28N2O12P4
					    Molecular Weight: 492.3
					Structural Formula:   
					
					
					Properties:
					
					
					HDTMP is a white crystal 
					powder at room temperature, slightly soluble in water, with 
					solubility less than 5%.
					
					
					HDTMP can inhibit most scale formation 
					such as calcium carbonate, calcium sulfate, barium sulfate 
					and ferric oxide. As water treatment chemicals,
					
					HDTMP 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.
					
					HDTMP 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)