Diethylene Triamine Penta (Methylene Phosphonic Acid) Pentasodium salt
DTPMP•Na5
CAS No. 68155-78-2
Molecular formula:C9H23O15N3P5Na5
Relative molecular mass:683.2
Structural formula:

1. Performance and use:
DTPMP·Na5 is a neutral product. DTPMP·Na5 is non-toxic. Solid DTPMP·Na5 is highly hygroscopic and soluble in water. It is used as a scale inhibitor and corrosion inhibitor for circulating cooling water and boiler water in water treatment.
DTPMP·Na5 can be used as a peroxide stabilizer, a chelating agent for textile printing and dyeing, a dispersant for pigments, a trace element carrier in fertilizers, and a concrete additive. In addition, it has also been widely used in papermaking, electroplating, and cosmetics.
2. Technical indicators
| Item | Indicator |
| Appearance | Amber transparent liquid |
| Active ingredient(DTPMPA)/% | 24.0~26.0 |
| Active ingredient(DTPMP·Na5)/% | 28.5~31.0 |
| Total phosphorus(PO43-)/% | 19.7~21.7 |
| pH(1%Aqueous solution) | 6.0~8.0 |
| Density(20℃)/g·cm-3 | ≥1.25 |
| Chloride (Cl-) /% | ≤5.0 |
| Fe /mg·L-1 | ≤20.0 |
3. Packaging and storage
DTPMP·Na5 liquid material is packed in plastic barrels, 25kg or 250kg per barrel, and stored in a cool and dry place indoors, moisture-proof, with a storage period of ten months.
4. Safety protection
DTPMP·Na5, pay attention to labor protection when handling, avoid contact with skin, eyes, etc., rinse with plenty of water after contact.
Related keywords:
Water treatment chemicals
Water treatment manufacturer
China Quality Supplier
Organic phosphonate
Corrosion inhibitor
Scale inhibitors and dispersant