產品廣泛套用於循環冷卻水系統和油田回注水系統。PBTCA具有良好的阻碳酸鈣、磷酸鈣垢的性能，對鋅離子等有獨特穩定的作用，使鋅離子在PH為8.3的循環冷卻水中穩定存在。在PH為9.5時還能穩定，使含鋅鹼性運行配方成為可能。PBTCA還具有良好的耐高溫、耐氧化、耐氯穩定性能，對高濁度、高鐵的循環水有良好的分散性能。
PBTCA樣品圖別名：,2,4-三羧酸-2-膦酸基丁烷；PBTC；2-膦醯基-1,2,4-丁烷三羧酸；膦醯基丁烷三羧酸； CAS No. 37971-36-1 分子式 C7H11O9P 相對分子質量：270.13
結構式
一、產品性能：
PBTCA含磷量低，由於它具有膦酸和羧酸的結構特性，使其具有良好的阻垢和緩蝕性能，優於常用的有機膦酸，特別在高溫下阻垢性能遠優於常用的有機膦酸，能提高鋅的溶解度，耐氯的氧化性能好，復配協同性好。PBTCA在高效阻垢緩蝕劑復配中套用最廣，是性能最好的產品之一，也是鋅鹽的優良穩定劑。廣泛套用於循環冷卻水系統和油田注水系統的緩蝕阻垢，特別適合與鋅鹽、共聚物復配使用，可用於高溫、高硬、高鹼及需要高濃縮倍數下運行的場合，PBTCA在洗滌行業中可作螯合劑及金屬清洗劑。
二、質量指標 符合HG/T 3662-2000
| 項 目 | 指 標 |
| 外 觀 | 無色或淡黃色透明液體 |
| 活性組分（以PBTCA計）% ≥ | 49.0-51.0 |
| 亞磷酸（以PO3計）% ≤ | 0.5 |
| 正磷酸（以PO4計）%≤ | 0.5 |
| 密度（20℃）g/cm3 ≥ | 1.270 |
| PH值（1%水溶液） | 1.5 - 2.0 |
三、用途
PBTCA在高效阻垢緩蝕劑復配中套用最廣，是性能最好的產品之一，也是鋅鹽的優良穩定劑。廣泛套用於循環冷卻水系統和油田注水系統的緩蝕阻垢，特別適合與鋅鹽、共聚物復配使用，可用於高溫、高硬、高鹼及需要高濃縮倍數下運行的場合，PBTCA在洗滌行業中可作螯合劑及金屬清洗劑。
四、套用範圍與使用方法
PBTCA一般與鋅鹽、共聚物、有機磷、唑類等其它水處理劑復配使用。如單獨使用投加劑量為5~15mg/L。
五、安全防護
PBTCA為酸性，應避免與眼睛、皮膚接觸，一旦濺到身上，應立即用大量水沖洗。
六、包裝與貯存
PBTCA用塑膠桶包裝，每桶25Kg或250Kg。貯存於室內陰涼處。貯存期十二個月。
2-Phosphonobutane -1,2,4-Tricarboxylic Acid(PBTCA)
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 ％ | 50.0 min |
| Phosphorous acid（as PO3）% | 0.8 max |
| Phosphorous acid（as PO4）% | 0.5 max |
| Density （20℃）g/cm | 1.27 min |
| pH（1％ solution） | 1.5~2.0 |
Usage:
PBTCA 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 Chemicals. 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.
Keywords: PBTCA China,2-Phosphonobutane -1,2,4-Tricarboxylic Acid(PBTCA)
