DTPMP.Na5 CAS 68155-78-2
DTPMP.Na5, chemically recognized as Diethylene Triamine Penta (Methylene Phosphonic Acid) Pentasodium Salt, is a highly efficient, water-soluble organic phosphonate scale and corrosion inhibitor.
Engineered specifically for demanding industrial water systems and multi-sector manufacturing applications, DTPMP.Na5 delivers exceptional operational safety and processing flexibility. Unlike hyper-acidic phosphonates that require careful pre-neutralization and specialized corrosive-resistant dosing equipment, DTPMP.Na5 is delivered as a near-neutral, highly stable liquid platform. This structural neutrality minimizes handling risks, reduces plant equipment wear, and ensures seamless compatibility when blending into multi-component water treatment formulations.
- Excellent Thermal Stability: Maintains superior scale inhibition profiles under elevated operating temperatures, outperforming conventional phosphonates in high-temperature boiler systems.
- Neutral pH Profile: Formulated to have a near-neutral solution pH, significantly minimizing environmental liabilities, transportation risks, and operational corrosive wear.
- Extreme Aqueous Miscibility: Fully miscible with water in any proportion, preventing product stratification or separation in concentrated automated chemical feed systems.
- High Solid-State Hygroscopicity: In its solid variations, the molecule possesses powerful moisture absorption capabilities, making it highly functional under specialized industrial blending conditions.
DTPMP•Na5 Description
NAME: DTPMP.Na5 & Diethylene Triamine Penta (Methylene Phosphonic Acid) Pentasodium salt
Molecular Formula: C9H23O15N3P5Na5
CAS NO.: 68155-78-2
Properties: DTPMP•Na5 is a sodium salt aqueous solution of DTPMPA, with a pH value close to neutral, non-toxic, and can be miscible with water in any proportion.
Package: Our DTPMP.Na5 aqueous solution is supplied in 25kg, 250kg plastic drums, or 1250kg IBC totes.
Storage: stored in a cool and dry place indoors, moisture-proof, and the storage period is ten months. Each production batch is rigorously tested for active phosphonic acid content (≥ 24.0%) and iron ion limits (≤ 20.0 mg/L) to guarantee non-staining performance in textile and cooling tower applications. Complete TDS, MSDS, and ISO quality documentation are available upon inquiry.
Safety protection: DTPMP•Na5 is neutral. Pay attention to labor protection during operation. Avoid contact with skin, eyes, etc., and rinse with plenty of water after contact.
Keywords: Organophosphorus Scale Inhibitor; Peroxide Bleach Stabilizer; Barium Sulfate Scale Control; Cooling Water Chelating Agent; AQUACID 1067; Briquest 543; Dequest 2066
Diethylene Triamine Penta (Methylene Phosphonic Acid) Pentasodium salt Technical
| Item | Index |
| Appearance | Amber transparent liquid |
| Active content (DTPMPA)% > | 24.0～26.0 |
| Active content (DTPMP•Na5)% | 28.5～31.0 |
| Total Phosphoric acid (as PO43-)% | 19.7～21.7 |
| Fe, mg/L | ≤20.0 |
| PH(1% water solution) | 6.0～8.0 |
| Density (20℃) g/cm3 | ≥1.25 |
| Chloride (as Cl–), % | ≤5.0 |
DTPMP•Na5 Applications
- Industrial Water Treatment: DTPMP.Na5 is globally utilized as a primary scale and corrosion inhibitor in circulating cooling water loops, thermal power plant boilers, and industrial cooling towers. It functions via severe crystal lattice distortion and the threshold effect, drastically mitigating the formation of calcium carbonate, calcium sulfate, and specifically stubborn barium/strontium sulfate deposits, thereby extending heavy machinery lifespans.
- Textile Printing, Dyeing & Bleaching: In the textile industry, DTPMP.Na5 acts as a high-capacity stabilizing and chelating agent during fabric scouring and peroxide bleaching phases. By binding with trace catalytic metal ions (such as Fe3+ and Mn2+), it prevents the uneven decomposition of bleaching agents, safeguards fabric tensile strength, stabilizes dye matrices, and improves overall color fastness.
- Pigment Dispersion & Slurry Stabilization: During large-scale pigment manufacturing and coat compounding, DTPMP.Na5 serves as an aggressive organic dispersant. It modifies the surface charges of suspended pigment particulates, generating powerful electrostatic repulsion that ensures an evenly distributed, non-agglomerating paint or slurry matrix.
- Trace Element Carriers in Modern Agrochemicals: In agricultural science and advanced fertilizer blending, DTPMP.Na5 is deployed as a micronutrient chelating agent. It acts as a highly efficient trace element carrier, prevents essential plant minerals from binding permanently with soil ions, and significantly accelerates micronutrient bioavailability for agricultural crop systems.
- Concrete Admixtures & Retarding Formulations: Within civil engineering, DTPMP.Na5 serves as a high-efficiency additive in specialized concrete admixtures. It modulates the hydration mechanics of cement pastes, operating as a controlled water reducer and set retarder that enhances the fluidity, workability, and long-term compressive strength of poured concrete structures.
- Auxiliary Processing: Beyond core sectors, DTPMP.Na5 is highly valued as a peroxide stabilizer in pulp bleaching loops, an advanced complexing agent in non-cyanide electroplating baths, and an oxidation preventer in cosmetic formulations to protect delicate organic shelf stability.
Q1: What makes DTPMP.Na5 exceptionally unique compared to ATMP or HEDP salts?
A: While ATMP and HEDP derivatives are excellent for general calcium carbonate scaling, DTPMP.Na5 features an extended polyphosphonic chain structure. This gives it an unparalleled threshold inhibition efficiency against barium sulfate (BaSO4) and strontium sulfate (SrSO4) precipitates, which are notoriously difficult to dissolve with standard chemical cleaners once formed.
Q2: How does the neutral pH of DTPMP.Na5 improve operational workflows?
A: Traditional phosphonic acids have an extremely low pH (< 2.0), making them highly corrosive to carbon steel dosing lines and hazardous to handle. Delivering DTPMP as a pentasodium salt with a neutral pH range (6.0 – 8.0) effectively eliminates the corrosive threat to handling infrastructure and reduces the need for expensive chemical neutralization steps on-site.
Q3: Does DTPMP.Na5 display a synergistic effect when paired with polymer dispersants?
A: Yes. DTPMP.Na5 exhibits superb multi-action synergy when formulated alongside polyacrylic acid (PAA), polymaleic acid (HPMA), or sulfonated copolymers. Blending these agents maximizes overall anti-scaling efficiency across both crystal nucleation control and macro-particulate dispersion.
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