DTPMPA

DTPMPA, or Diethylene Triamine Penta (Methylene Phosphonic Acid), is a liquid scale and corrosion inhibitor with CAS number 15827-60-8 and molecular formula C9H28O15N3P5. It appears as a brown transparent liquid with a density of 1.35 to 1.45 g/cm³ at 20°C and a pH of approximately 2.0 in a 1% solution. The active acid content ranges from 48.0% to 52.0%, with phosphorous acid limited to 3.0% maximum and chloride content between 12% and 17%. Iron content is controlled to 35 ppm or less, ensuring compatibility with sensitive water systems.

This compound is stable under alkaline conditions and maintains effectiveness at temperatures above 210°C, outperforming many organophosphines in high-temperature environments. It inhibits scale formation from carbonate, sulfate, and phosphate salts without requiring additional pH adjustment, making it suitable for circulating cooling systems and boiler water applications. DTPMPA also functions as a peroxide stabilizer, chelating agent in textile dyeing, pigment dispersant, and concrete modifier. Its low sedimentation rate allows it to be used alone without dispersants in many industrial contexts.

It is commonly purchased by operators of industrial cooling towers, oilfield injection systems, and paper mills needing corrosion control. Packaging is typically in 250 kg plastic drums, with IBC containers available on request. Storage must be in a cool, dry, shaded area to maintain stability for up to ten months. Buyers should confirm compatibility with their system’s materials and test for compatibility with existing additives before full-scale adoption.

Zaozhuang Xintai Water-Treatment Co., Ltd. is based in the Zhongtai Chemical Industry Park in Shandong Province, China. The supplier is verified through harbor-level trust signals, indicating documented export activity and compliance with basic shipping documentation. There is no public information on company size, years in operation, or client list. The listing confirms active production and packaging of DTPMPA but does not state certifications, lab capacity, or R&D capability.

The supplier’s profile does not indicate ISO certification, in-house testing facilities, or third-party quality audits. Response metrics are unavailable, suggesting limited or no direct communication channels on the platform. Buyers should treat this as a manufacturer with documented export history but no public verification of operational scale or technical support infrastructure.