Lieb-Zacherl-apparatus, determination of free SO2

The Lieb–Zacherl apparatus is a classical analytical setup used for the acidimetric determination of free sulfur dioxide (SO₂) and ascorbic acid in wines, fruit juices, and other beverage samples.
This complete glassware assembly is manufactured from Borosilicate glass 3.3, ensuring excellent chemical resistance and durability under repeated heating and titration conditions.

The apparatus includes all essential glass components required for accurate SO₂ quantification. The design allows efficient gas absorption and condensation, ensuring reliable and reproducible results according to the Lieb–Zacherl method.

Supplied components:

• 1 × 1000 ml inclined two-neck flask

• 1 × separating funnel

• 1 × condenser

• 1 × thermometer sleeve

• 1 × thermometer (0–100 °C)

• 2 × gas bubblers

• Silicone tubing connections

Note: Stand and clamp are not included.

Key Features:

• Designed for acidimetric determination of free SO₂ or ascorbic acid

• Complete borosilicate glass assembly for wine analysis

• High chemical and thermal resistance

• Compatible with standard lab stands and clamps

• Reliable analytical performance following established Lieb–Zacherl procedures