Residual sugar determination in wines and musts using Fehling method

Sugar determination

The Fehling method provides an easy and economical solution to accurately determine the quantity of residual sugar in wines. This kit includes products for discoloration with a funnel and folded filters, as well as an alcohol lamp (about 6 minutes heating time).

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  • 196000- Complete kit for sugar determination for wines and musts
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  • 196000-Complete kit for sugar determination for wines and musts

PRINCIPLE

Residual sugars in the solution discolor the Fehling liquor at boiling point. The Fehling liquor is titrated in a manner that 10ml are discolored by 0.05g of inverted sugar (glucose and fructose). ).

EQUIPMENT AND REAGENTS

  • Stand, rod, and clamps
  • Glass alcohol lamp (100ml) (Ref. 600950)
  • Glass funnel (55mm diameter) (Ref. 363003)
  • Folded filters 1B (150mm diameter) (Ref. 650311)
  • Graduated glass beaker, low form (250ml) (Ref. 613250)
  • Graduated Erlenmeyer flask, narrow neck (250ml) (Ref. 615250E)
  • Burette (25ml – 1/10) (Ref. 196201)
  • 2-mark pipette (10ml) (Ref. 603010)
  • Dropping pipette with rubber bulb (Ref. 630000)
     
  • Granulated pumice stone 30g (Ref. 990005)
  • Fehling liquor 500ml (Ref. 916000)
  • Methylene blue 30ml (Ref. 944000)
  • Phtenolphthalein with dropper 60ml (Ref. 938060)
  • Vegetal coal 500g (Ref. 983500)

Produits associés

Fehling liquor - 500 ml

916000Fehling liquor - 500 ml

Fehling liquor A - 500 ml

916100AFehling liquor A - 500 ml

Fehling liquor B - 500 ml

916100BFehling liquor B - 500 ml

Phenolphthalein - 60 ml

938060Phenolphthalein - 60 ml

Methylene blue

944000Methylene blue

Vegetal coal - 500 g

983500Vegetal coal - 500 g

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