Manufacturers and Suppliers of Chemicals, Reagent Ltd

Purified Water

Water Ultra Pure - Typical Analysis

H2O	M.W. 18.01
pH	5-8
Conductivity	<1μs/cm*
Silica as SiO2	<0.01 mg/L
Calcium & Magnesium (as Ca + Mg)	<0.05 mg/L
Chloride as Cl	<1.0 mg/L
Residue on Evaporation	<2mg/L
Nitrate	<2ppm
Heavy Metals (Pb)	<0.1ppm

*CO2 absorbed from the atmosphere once produced can increase conductivity very slightly

Product Code	Pack Size	Price (£)
WAUL-1232-20	1L	5.53
WAUL-1232-23	5L	14.96
WAUL-1232-29	25L	43.65
WAUL-1232-32	1000L	250.00

Also called - Pure Water Ultra Pure Water, Water Pure, Water Ultra Pure, Pure H2O, Ultra Pure H2O, H2O Pure, H2O Ultra Pure and Polished Water

There are a number of grades of water that are available commercially, the two grades most widely supplied by ReAgent are deionised water and ultra pure water. Third-party microbiology testing is eesential to our production regime and this is carried out on a weekly basis, in addition to regular chemical testing in-house. All of our water is supplies are produced to our ISO 9001:2000 accredited systems

How do we make our Ultra Pure Water?

We start off with common tap water from the mains supply. Firstly the Organic material is removed, using a special resin. Then we pass the water through a Twin-Bed Deionizer, where a dual tank systems removes first the Cat Ions, then the An Ions. This reduces the maximum level of impurities in the water to 10 µ per cm, however it is typically much lower – around 1µ per cm. This first part of the process produces water of Deionised quality, and provides the starting material for the next stage of the purification process.

The water is then passed through a Mixed Bed Resin, where impurities are reduced to > 0.05 µ per cm. Ultra Violet Treatment follows, with the water passed through a strong UV Light to remove any remaining traces of micro-organisms. In the final stage, filtration is used using a 0.2 micron filter. After this stage, the water is Ultra Pure, and meets the requirements of European Pharmacopoeia.

At ReAgent, Deionised Water is the lowest quality water which we will use.in any product and we use Ultra Pure water for many of the solutions we manufacture, including pharmaceutical grade products.

We can supply ina wide range of pack sizes (1L to 1000L). To enquire about price and availability of our various grades of water please contact us using the form below.

Enquiry Form Company* Name* email* Tel. Number Details*

Accreditation to ISO 9001:2000 for the manufacture and supply of reagents and standards. 100% technical support before, during and after purchase. Flexible Pack Sizes let us know what you require

---