What is the Ph Scale?
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The Potential of hydrogen (Ph) scale is a measure of how acidic or alkaline a substance is. It ranges from 0 to 14, with 7 being neutral. A pH less than 7 indicates acidity, while a pH greater than 7 indicates alkalinity (or basicity).
Do we need it?
Yes, of course wte do! Think of the pH scale like a number line that tells you if something is sour (acidic) or bitter (alkaline), and right in the middle is 7, which is water – neither sour nor bitter. Numbers below 7 are sour, like lemon juice, and the lower the number, the more sour it is. Numbers above 7 are bitter, like baking soda, and the higher the number, the more bitter it is. This helps us understand if materials we use in old buildings are safe and won't cause damage!
It's also good to know about tye c leaning agents used daily around the home; are they safe? Will they cause damage to surrounding surfaces or textiles? Basically everyone needs an understanding of what they are buying/using - today's world is actually quite worrying, far too many people are simply sucked in by labels and brand names which are really only for the foolish and easily led., and Mark Eting is always ready to strip money out of the foolish peoples banks.
In building conservation and restoration, understanding the pH scale is crucial. Many materials, like lime-based mortars and plasters, are alkaline. Knowing the pH of cleaning agents or other materials you're using can help you avoid damaging sensitive surfaces. Matching the pH of repair materials to the original building fabric is also important for long-term compatibility.
We also need to understand the Ph Scale to stop listening to the armchair experts who constantly tell people that vinegar is the test for lime or cement, which is just more nonsense spouted by the "wannabe Scientists" 🤣 our truths can be read here