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The researchers found that the pH values ranged from 4.97 to 5.72, with only one sample having a significantly higher pH (5.72) compared to the others and exceeding the critical pH threshold of 5.5 for beverages. [11] The majority of the samples had pH values between 5.0 and 5.29, which falls within the expected range for regular commercial coffee.
Low pH colour Transition pH range High pH colour Thymol blue (first transition) Red 1.2 – 2.8 Yellow Methyl orange: Red 3.2 – 4.4 Yellow Methyl red: Red 4.8 – 6.0 Yellow Bromothymol blue: Yellow 6.0 – 7.6 Blue Thymol blue (second transition) Yellow 8.0 – 9.6 Blue Phenolphthalein: Colourless 8.3 – 10.0 Fuchsia
The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [2] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [3]
* means action level; not a concentration standard. A public water system exceeding the action level must implement "treatment techniques" which are enforceable procedures. [14] ** TT (treatment technique). The public water system must certify that the combination of dose and monomer level does not exceed: acrylamide = 0.05% dosed at 1 mg/L (or ...
The original acid phosphate, made by Horsford's chemical company, [3] [5] and was a mixture of calcium, magnesium and potassium phosphate salts with a small amount of phosphoric acid producing a liquid mixture with a pH of around 2 to 3, the same as freshly squeezed lime juice. Horsford used bone ash, which is mostly calcium phosphate. In the ...
Acidic food and drink lowers the pH level of the mouth resulting in demineralisation of the teeth. A variety of drinks contribute to dental erosion due to their low pH level. Examples include fruit juices, such as apple and orange juices, sports drinks, wine and beer. Carbonated drinks, such as colas and lemonades, are also very acidic and ...
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Sting Energy (or Sting) is a carbonated energy drink produced by Rockstar Inc. (acquired by PepsiCo in 2020). Sting is available in flavors such as the original Gold Rush, Gold (with Ginseng), Power Pacq (Gold Rush with Malunggay), Power Lime (Kiwifruit/Lime), Berry Blast (Strawberry) and blue thunder (blue raspberry).