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116301
  • 116301

Instrument for volatile acidity extraction Duclaux-Gayon method

Direct distillation of volatile acids

Simple distillation method for volatile acids through direct flask heating with a gas burner (titration accessories not included).

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  • 116300- Volatile acidity extractor Duclaux-Gayon on stand
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  • 116301- Volatile acidity extractor Duclaux-Gayon on stand with heating
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Références concernées

  • 116300-Volatile acidity extractor Duclaux-Gayon on stand
  • 116301-Volatile acidity extractor Duclaux-Gayon on stand with heating

PRINCIPLE

Volatile acidity consists on acids from acetic series, present in wine in free state or in salt form. 80% of volatile acids are collected through direct distillation of 10/11 of the initial volume, then titrated with a standard solution of sodium hydroxide using phenolphthalein as pH indicator

TECHNICAL FEATURES

  • Laboratory glassware
  • Easy to assemble and disassemble thanks to its Rodavis system
  • Rectifying column to hold the lactic acid
  • Duration of the operation: around 20 minutes 
  • Recommended use: 1 to 10 analyses /week

EQUIPMENT

  • Stand, stainless steel rod, and support
  • Bunsen burner, Rodavis flask and Rodaviss cap
  • Rectifying column
  • Cooling system
  • Large clamp
  • Double nut for rods
  • Volumetric flask
 

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116301