WS 8640

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Use

WS 8640 is a synergistic blend of maleic acid polycarboxylates and organic sequestring agents of ATMP type.

It is recommended for deposit inhibition in industrial water systems like recirculating cooling systems, cooling towers, waste water streams facing deposition problems, paper mill applications etc.

Almost mineral scales can be inhibited by WS 8640 like Calcium Carbonate, Fe and Mn based scales, CaF2 etc.

Features

WS 8640 is a very concentrated, synergistic blend resulting in low dose rates and normal use cost.

It is chlorine stable, but not Chlorine Dioxide resistant. Under such conditions WS 8641 should be preferred.

WS 8640 is suitable for use in waters containing high solids amounts.

WS 8640 has low Phosphorous content, making its use acceptable in environmentally sensitive areas.

Appearance : clear colourless to yellow

Density (kg/m 3 ) : 1020 -1140
pH : 2 - 3
Freezing point : -5°C

These data are to be seen as typical values and should not be considered as specifications.

Feeding

Continuous feeding at 5-25 ppm of WS 8640 is recommended for most applications. However, optimum dosage will depend on the nature and severity of fouling and the operational parameters of the system.

WS 8640 is an acidic material and therefore corrosion resistant feeding equipment should be used.

Handling precautions

Wear suitable protective clothing, goggles and gloves. In case of contact, immediately flush eyes or skin with plenty of water for at least 15 minutes.

For eyes, get medical attention. Remove and wash contaminated clothing.

If swallowed, drink large quantities of water. Do not induce vomiting and call a physician

immediately.

Small spills may be flushed with water, larger spills should be soaked up with sand or other

absorbent material and swept up for safe disposal.

Store in a cool place, away from products containing sulphite or nitrite.

Before use review the Material Safety Data Sheet for additional information.

Transport classifications

A.D.R. : 8-40c

Labelling for Handling

Symbol : Corrosive (C)
R-phrases : 36
S-phrases : 25, 26

Packaging

WS 8640 is packed in 28 kg jerrycans, and 220 kg PE drums

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