Steam Boilers, Condensate

With our rapidly increasing demands for energy, steam grows in importance as a primary energy-transfer medium for power generation, industrial processing and space heating.

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Cooling Towers and Chillers

Many problems are caused by impurities in industrial cooling water due to lack of treatment, governmental regulation of wastewater discharge and escalating emphasis on conservation of both water and energy.

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Water Treatment

Paras Hydrochem performs boiler water side service, cleaning and de-scaling by chemical circulation, to help increase efficiency and extend boiler life, reducing your operating costs and saving your equipment.

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PARAS - 21 E-mail

Cooling Water Treatment Chemical - Antiscalant and Corrosion Inhibitor


In Industrial processes considerable cooling is needed to condensate gases, control process temperatures and protect equipments. Water is mostly used as the primary coolant in all industrial application. In a recirculating cooling water system water is recirculated in a Cooling Tower and recycled again and again through cooling equipments thus becoming more and more concentrated in its mineral contents giving rise to following problems.

  • Scale formation in heat transfer areas.
  • Fouling by accumulation of suspended solids and corrosion products.
  • Corrosion of cooling equipment.
  • Growth of micro organism.

"PARAS – 21" Chemical is especially formulated to over come above problems.The base body of this product is Hydroxy Ethylene Diphosphonate formulated with Polyacrylate, SHMP, and Zinc Sulphate.
The Product reduces hardness and keeps Salts in suspension up to normally 5 C O C and thus prevents scale deposion and Corrosion.
The Product is Alkaline and non Corrosive. The Product is most suited to Make up water hardness up to 200 pm.

Appearance Colourless to Pale Yellow Liquid
Sp. Gr. at 25 ºC 1. 100 to 1.135
pH (as is) 1 pH
pH (1% solution) Acidic
Solubility 100% water soluble

Ready to use Liquid
Easy to Handle
Improves Cooling efficiency


The dose varies with water Hardness, cycle of concentration and process conditions.

The Normal recommended Dose for soft Make up water is 50 – 100 ppm. If severe conditions exist higher dose may be required. Our engineer will examine water quality and other parameters and recommend the exact dose suitable to your conditions. It is preferable to clean entire cooling system before switching to above treatment.