DIETHYLENETRIAMINE PENTAMETHYLENE PHOSPHONIC ACID- ▸ Scale inhibitor: Controls mineral scale in industrial water systems.
- ▸ Chelant/sequestrant: Complexes metal ions in process water.
- ▸ Bleach stabilizer: Stabilizes peroxide bleaching baths.
- ▸ Dispersant: Dispersing agent in cleaning and textile formulations.
- ▸ Water treatment: Cooling-water and oilfield water systems.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
Diethylenetriaminepenta(methylenephosphonic acid) (CAS 15827-60-8), or DTPMPA, is an organophosphonic-acid chelating and scale-inhibiting agent. It is used in water treatment as a scale inhibitor, sequestrant, dispersant, and peroxide-bleach stabilizer, and across cleaning, textile, and paper processing.
Frequently Asked Questions
What is DTPMPA used for?
Diethylenetriaminepenta(methylenephosphonic acid) (DTPMPA, CAS 15827-60-8) is an organophosphonic-acid chelating and scale-inhibiting agent. It is used in water treatment as a scale inhibitor, sequestrant, dispersant, and peroxide-bleach stabilizer, and across cleaning, textile, and paper processing. RawSource supplies it in bulk to water-treatment and industrial formulators.
How does DTPMPA inhibit scale?
DTPMPA carries five methylenephosphonic acid groups that complex calcium, magnesium, iron, and other metal ions, keeping them in solution and disrupting crystal growth so mineral scale does not deposit on heat-exchange and process surfaces. This chelation also makes it an effective sequestrant and dispersant in cooling-water and oilfield systems.
What is the difference between DTPMPA and its pentasodium salt?
DTPMPA (CAS 15827-60-8) is the free acid form, while the pentasodium salt (DTPMP.Na5, CAS 68155-78-2) is partially neutralized for a near-neutral pH. The acid is preferred where low pH is acceptable or desired; the sodium salt is chosen for formulations needing reduced acidity. Both perform the same chelation and scale-inhibition function.
What is the CAS number and formula for DTPMPA?
DTPMPA's CAS number is 15827-60-8 and molecular formula C9H28N3O15P5, classified under HS 2931.49 (other non-halogenated organophosphorus derivatives). RawSource provides a Certificate of Analysis and SDS with each bulk shipment.
What is the cost of bulk DTPMPA?
Bulk DTPMPA pricing depends on volume, active-content specification, packaging, and freight. RawSource quotes against current supply; request a bulk quote with your volume and ship-to for current pricing.