Complete kit for raw and corrected volatile acidity determination with two Schilling burettes

Determination of raw and corrected volatile acidity after steam extraction

This kit includes two 25ml burettes with automatic self-zeroing on flexible flasks, with rubber bulb and siphon, a pipette, a crystallizer, an Erlenmeyer flask and the reagents and standard solutions.

Ajouter à ma demande de devis
  • 115302- Complete kit for VA (raw and corrected) determination with Schilling burette
    Quantity:
    Add this item to quote

Références concernées

  • 115302-Complete kit for VA (raw and corrected) determination with Schilling burette

PRINCIPLE

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

EQUIPMENT AND REAGENTS

  • 2 automatic self-zeroing burettes (25ml - 1/10) on flexible flask (600105)             
  • 1 pipette (10ml - 1 mark) (Ref. 602010)
  • 1 Erlenmeyer graduated flask (100ml) (Ref. 615100E)
  • 1 crystallizer (100ml - 70mm diameter) (Ref. 627070)
     
  • Phenolphthalein, 60ml (Ref. 938060)
  • Acidimetric solution, 500ml (Ref. 902500)
  • Bromothymol blue, 60ml (Ref. 940060)
  • Iodide/iodate N/50, 500ml (Ref. 924500)
  • Sulphuric acid, 250ml (Ref. 932250)
  • Indicator, 125ml (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