Labconco Two and Six-Place (Macro) Kjeldahl Distillation Systems 2127603 - Manual (Page 13)

Chapter 3: Normal Operation & Routine Maintenance
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Clean-Up and Cosmetic Guidelines
• Keeping the Kjeldahl Distillation System clean will preserve the
appearance and improve life of the equipment.
• The equipment can be kept clean by washing with a weak solution of
sodium hydroxide and rinsing with clear water.
• Sulphate, a salt of Sulfuric Acid, may build up between the channel
support and the fume removal manifold. Neutralize this with a weak
solution of sodium hydroxide periodically to keep the unit clean.