Diethylene Triamine Penta (Methylene Phosphonic Acid)(DTPMPA) has excellent scale and corrosion inhibition and good thermal tolerance ability.
Also refer this link http://rxmarine.com/water-treatment-chemicals-etidronic-acid-Hedp-Acid-60-Hydroxy-Ethylidene-1-1-Diphosphonic-acid
DIETHYLENE TRI AMINE PENTA (METHYLENE PHOSPHONIC) ACID, DTPMPA, Belclene 630, AQUACID 106EX
Oman, Bahrain, Abu Dhabi, Ajman, Al Ain, Dubai, Ras Al-Khaimah, Fujairah, Sharjah, Umm Al Quwain, Ruwais, Khalifa Port, Jebel Ali, DP WORLD, and all UAE ports...