pH Buffers, for Karl Fischer titrations, HYDROQUANT®Lieferant: VWR Chemicals
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85498.290EA 110 EUR85498.290 85497.260
pH Buffers, for Karl Fischer titrations, HYDROQUANT®
Karl Fischer Titriermittel und Reagenzien
The volumetric and coulometric HYDROQUANT® reagents are buffered systems, stabilised around the ideal value between 5 to 7 ensuring a rapid and stoichiometric course of reaction. Buffering systems which neutralise and stabilise the pH during the reaction are suitable for this purpose.
HYDROQUANT® acid buffer can be used to neutralise certain carboxylic acids that tend to esterify and the buffer capacity is about 5 mmol per ml. Pyridine and imidazole can be used for strong acidic media.
HYDROQUANT® Base buffer is a suitable working medium for basic samples, it contains salicylic acid and the buffer capacity is about 1 mmol per ml. Benzoic acid and salicylic acid may also be used for strong basic samples.