The chemistries used in industrial cleaning processes are predominantly either dry (granular or powder) or liquid. Dry chemistries cover a wide range of density and flow characteristics. In fact, two batches of the “same” dry chemistry may have considerably different properties. Each liquid product has its own specific gravity and viscosity characteristics but may also vary in other …
In the past week or so, I have had several people walk into my office and ask a question that has been popular for as long as I can remember – – “What is the ratio of cross section to depth that defines the cleanability of a blind hole?” As is so often the case in …
Most cleaning processes are comprised of a number of discreet steps. A wash followed by one or more rinses and then a dry would be a typical cleaning process. As parts being cleaned are moved from one process step to the next, they are vulnerable to potential risks by conditions not directly related to cleaning. Whether related …
We all know that an ounce is a unit of weight, right? There are 16 ounces in a pound, 2,000 pounds in a ton and so on. However, in another convention, there are 8 ounces in a cup, 16 ounces in a pint, 32 ounces in a quart, 128 ounces in gallon, etc. In fact, …
Previous blogs have revealed a number of ways to measure chemical concentration in a cleaning bath. It is a logical extension that process engineers utilize these tools to automate maintaining the proper chemical concentration in their cleaning processes. Overall, this is a great idea. However, there are some pitfalls and things that should be taken …
So far, we have recognized pH and specific gravity as ways to determine chemical concentration in cleaning solutions. This blog will explore additional techniques that may also be used for this purpose. Conductivity – Pure water is a poor conductor of electricity. As chemistry is added to water, it’s ability to conduct electricity is increased. …
In order to maintain process consistency in an industrial cleaning process, it is frequently necessary to monitor the concentration of chemistry in a cleaning solution. pH and specific gravity are two common parameters that can be used to determine the concentration of cleaning chemistries in water. This blog explores ways in which pH and specific gravity can …
With this post, I have reached 200 in what may be an infinite series of blogs. So far, it has been a very interesting adventure – not only because I’ve been able to share a lot of information with you people who read this blog but because I’ve learned as well. Having been in the …
Titration is a procedure frequently used to measure the chemical concentration in a liquid. The concept is pretty simple. A specific volume of the solution under test is collected and put into a container which is usually an erlenmeyer flask or a beaker. The container can be glass, plastic or another material. Glass is often preferred because …
In a preceeding blog, I mentioned that pH is a logrhythmic function. As such, each increase of one pH unit represents a ten-fold change in the measured characteristic. This alone can lead to considerable confusion. But it gets worse! Concentration – One would think that pH would be directly related to concentration – – meaning …
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