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Cleaning and Dilution

The optimal dilution depends on several factors, such as the hardness of the water, the degree and type of contamination, the temperature, etc. The use of demineralised water improves the cleaning characteristics.

The following treatments have proved useful in practice:

Concentration
% by vol.
Temperature
°C
Time
minutes
0.5-2
0.5-2
0.5-2
0.5-2
25-30
30-35
50-60 (quarz only)
70-80 (quarz only)
20-180
30-40
10-15
2-5

An increase in temperature speeds up the cleaning process. However, at high temperatures it is necessary to avoid thermal shock. The cells should be pre-warmed before being submerged into hot cleaning solutions.

Dosing table Hellmanex® III

Download: Dosing table Hellmanex® III (155.89 kB)

Care should be taken when using ultrasound to clean cells.

Ultrasound improves the cleaning process noticeably, especially at higher temperatures. However, commercially available ultrasonic baths do not lend themselves to the cleaning of cells. Powers that are too high or cleaning durations that are too long can result in damages by cavitation, especially if the cell is placed on the bottom of the cleaning bath. Compact cells and all other cells which are made of several materials (glass, metal, plastic) must never be placed in an ultrasonic cleaning bath.

Product info

Product info

Art.-Nr.Description
9-307-011-4-507Hellmanex® III
Liquid cleaning concentrate, for glass, quartz cells and optical components
LIMITED QUANTITY: UN 3266, corrosive liquid, basic, inorganic, N.O.S. (Tripotassium Orthophosphate)
Selling unit from factory: Box with 6 bottles a 1.0 L
Total weight: approx. 9,3 kg
325.000SAV-a-CELL® plastic cell holder for 4 cells with 10 mm light path for cleaning purposes
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Tip

At raised temperatures, avoid leaving the cleaning solution in the cells so long that it evaporates. This can lead to damage to the surface of the glass through the increased concentration and higher pH value.

Hellmanex Anwendung

Download

Hellmanex Safety Data Sheet (129.26 kB)

Do you have questions?
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General contact
Hellma GmbH & Co. KG
Klosterrunsstraße 5
D-79379 Müllheim
Phone +49 7631/182-0
Mail info.de@hellma.com

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