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Health & Safety Cleaning 3 min read

The pH Scale

10 May 2022

You learnt about the pH scale at school all those years ago, and you probably listened with half an ear, right? Well, you need to know about it because it applies when you are choosing a chemical to clean with. This knowledge will keep you safe, but also explain how effective the product will be to use.

This knowledge will keep you safe, but also explain how effective the product will be to use.

The science bit, what does it mean?

The ‘pH’ bit is an abbreviation of ‘potential of hydrogen’, and the numbers on the scale represent the concentration of hydrogen ions in a water-based solution. A high pH is a higher concentration, and a low pH scale is a lower concentration, or even an absence of hydrogen altogether.

Running from 0-14, the pH scale can help you to determine whether a substance is acidic or alkaline. A substance with a pH of 7 is neutral; anything lower than 7 is increasingly acidic, with 0 being the most acidic, and anything higher than 7 is increasingly alkaline, with 14 being the most alkaline.  In a neutral solution you have both acidic and alkaline elements but they are equal making the product neutral.

Next, there is one other factor relative to pH that needs to be explained, and has to do with the corrosivness of a compound. Both acids and alkali’s have the capability of being corrosive, to classify a product or compound as being corrosive means that it would have the potential to eat eaway at something, in some cases very rapidly, and it would have the capability of being harmful to human tissue as well as inanimate objects.

In a neutral solution you have both acidic and alkaline elements but they are equal making the product neutral.

Knowledge is Power When it Comes to Effective Cleaning

The pH scale is always marked on the COSHH sheet and often on the label of products and you should check this before using.

It is therefore essential that the correct product is selected for the task at hand and it is correctly diluted.  If you are still confused or would like further help do not hesitate to contact the Customer Service team on 01626 355177.

How Does the pH Scale Relate To Cleaning Chemicals?

When cleaning a substance off a hard surface or a carpet, your goal is to neutralize the soil’s acidic or alkaline ions. Acid neutralizes alkaline, and alkaline neutralizes acid. Therefore, contrary to the myth that a higher pH level makes the best cleaning product.

Your goal is to neutralize the soil’s acidic or alkaline ions.

The following is actually true:

  • To clean acidic soils, you want a cleaning product that falls in the alkaline spectrum (pH greater than 7)
  • To clean alkaline soils, you want a cleaning product that falls in the acidic spectrum (pH less than 7)

For acid-based soils, such as those listed below, use alkali cleaners.

  • Greasy floors
  • Dirty walls
  • Cigarette tars
  • Engines and tools
  • Motor oils, diesel oil, axle grease
  • Cooking oil
  • Ventilation hoods
  • Ovens

For alkaline-based soils, such as those listed below, use acid cleaners.

  • Water spots
  • Rust
  • Calcium deposits
  • Lime deposits
  • Inside the dishwasher
  • Toilet bowls
  • Shower stalls
  • Urinals

It is important that every one who uses cleaning chemicals understands that some compounds are corrosive by their very nature and should be handled according to the label directions on the container.  Any corrosive chemical will have the corrosive symbol on the container

All corrosive products are labeled as such and must follow strict guidelines. This also shows that the incorrect use of chemicals can damage surfaces when cleaning. When you understand the proper use of cleaning chemicals, it becomes increasing clear that knowing about pH is pretty important!

Need expert advice?

 

Don’t have enough time in the day to do everything yourself?

 

Why not give us a call and see how we can help you with your needs?

 

01626 355177

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