 
	            	 
	       
CAS No. 37971-36-1                     Dequest   7000
Molecular Formula:  C7H11O9P                                              Molecular weight: 270.13 
Structural Formula:

Properties:
		          PBTCA has low  content of phosphoric,  has structural features of both phosphoric acid  and carboxylic acid group, which enable its excellent scale and corrosion  inhibition properties. Its antiscale property under high temperature is far  better than that of organophosphines. It can improve zinc salt solubility,  has good chlorine oxidation tolerance and good composite synergy.
Specification:
| Items | index | 
| Appearance | Colorless or light yellow transparent liquid | 
| Active acid % | 50.0min | 
| Phosphorous acid(as PO33-)% | 0.8max | 
| Phosphoric acid (as PO43-)% | 0.5max | 
| Density (20℃)g/cm3 | 1.27min | 
| pH(1% water solution) | 1.5~2.0 | 
Usage:
PTBCA is a  high efficient agent as scale and corrosion inhibitor. It is the excellent  stabilizer for zinc salt. It is widely used in circulating cool water system  and oilfield refill water system as scale and corrosion inhibitor, suitable to  composite with zinc salt and copolymer. It can be used in situations of high  temperature, high hardness, high alkali and high concentration index. In  lavation fields, it is used as chelating agent and metal detergent. 
PBTCA is  usually used together with zinc salt, copolymer, organophosphine, imidazole and  other water treatment agents. When used alone, the dosage of 5-15mg/L is preferred.
Package and Storage:
Normally In 250kg  net Plastic Drum, IBC drum can also be used as required. Storage for one year  in room shady and dry place.
Safety Protection:
   Acidity,  Avoid contact with eye and skin, once contacted, flush with water.