Complete kit for raw and corrected volatile acidity determination with two Mohr’s burettes.

Determination of raw and corrected volatile acidity after steam extraction

This kit offers all the necessary instruments for analysis in a perfectly organized case. It includes two 15ml Mohr’s burettes, a stand, a pipette, a crystallizer, an Erlenmeyer flask, and the reagents and standard solutions.

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  • 115300- Complete kit for volatile acidity (raw and corrected) determination
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  • 115300-Complete kit for volatile acidity (raw and corrected) determination

PRINCIPLE

A standard sodium hydroxide solution is poured into the distillate obtained from steam extraction, with some additional drops of phenolphthalein until it turns pink. In the presence of sulphurous acid (SO2) in the wine, the value found above is slightly in excess. It can be easily corrected by running an additional iodometric titration on the sample which has just been neutralized.

EQUIPMENT AND REAGENTS

  • 2 burettes (25ml - 1/10) (Ref. 600101)
  • 1 pipette (10ml - 1 mark) (Ref. 602010)
  • 1 Erlenmeyer graduated flask (100ml) (Ref. 615250E)
  • 1 crystallizer (100ml - 70mm diameter) (Ref. 627070)
  • 1 base (Ref. 600910)
  • 1 rod (Ref. 600921)
  • 1 clamp for two burettes with nut (Ref. 600905)
  • Phenolphthalein 60ml (Ref. 938060)
  • Acidimetric solution 500ml (Ref. 902500) 
  • Bromothymol blue 60ml (Ref. 940060)
  • Iodide / Iodate 500ml N/50 (Ref. 924500)
  • Sulphuric acid 250 ml (Ref. 932250)
  • Indicator 125 ml (Ref. 937125)

Produits associés

Acidimetric solution for total acidity - 500 ml

900500Acidimetric solution for total acidity - 500 ml

Acidimetric solution for volatile acidity - 500 ml

902500Acidimetric solution for volatile acidity - 500 ml

Iodide/Iodate N/50 - 500 ml

924500Iodide/Iodate N/50 - 500 ml

Sulphuric acid in 1/10 - 250 ml

932250Sulphuric acid in 1/10 - 250 ml

Starch - 125 ml

937125Starch - 125 ml

Phenolphthalein - 60 ml

938060Phenolphthalein - 60 ml

Bromothymol blue - 60 ml

940060Bromothymol blue - 60 ml