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Technical data


Reducing properties of glucose

Article no: P7186900

Principle
The aldehyde groups in glucose can be detected with silver nitrate, Fehling's solution and methylene blue. Glucose acts as a strong reducing agent in basic solutions. Glucose is thereby reduced to gluconic acid. Glass mirrors can be prepared with ammonical silver nitrate and glucose.The aldehyde group is responsible for the reducing properties of glucose. The reaction first takes place in hot alkaline solution. The chain type structure with the reactive acetaldehyde groups is formed from the stable hemiacetal form of glucose under these conditions.

 

Learning objectives

  • Glucose is a reducing agent
  • Detection methods for glucose

 

Benefits

  • Easy teaching and efficient learning by using interactive experimentation PHYWE-Software
  • Experiment is part of a complete solution set with experiments for the topic Food Chemistry matched with international curriculum: all topics are covered

 

Scope of delivery

Support base, variable 02001-00 1
Stand rods, stainless steel, various sizes 02059-00 1
Wire gauze with ceramic, 160 x 160 mm 33287-01 1
Spoon, special steel 33398-00 1
Wash bottle, 250 ml, plastic 33930-00 1
Beakers, Boro, low form, various sizes 46054-00 1
Beakers, Boro, low form, various sizes 46055-00 1
Beaker, 250 ml, plastic (PP) 36082-00 1
Graduated cylinders, plastic, various sizes 36629-01 1
Test tube, laboratory glass, various lengths, 100 pcs. 37658-10 1
Test tube brush w. wool tip,d20mm 38762-00 1
Test tube rack, wood, for 6 tubes d= 22mm MAU-20042200 1
Ring with boss head, i. d. = 10 cm 37701-01 1
Laboratory pen, waterproof, black 38711-00 1
Test tube holder, up to d 22mm 38823-00 1
Protecting glasses, clear glass 39316-00 1
Rubber gloves, size M (8), one pair 39323-00 1
Glass rod, boro 3.3, l=200mm, d=6mm 40485-04 1
Pipette with rubber bulb 64701-00 5
Ammonia solution, 25% 1000 ml 30933-70 1
Fehling's solution I 1000 ml 30079-70 1
Fehling's solution II 500 ml 30080-50 1
Sodium hydroxide, pellets, 1000 g 30157-70 1
Silver nitrate solution 5% 100 ml 30223-10 1
D(+)-glucose 1000 g 30237-70 1
Water, distilled 5 l 31246-81 1
Methylene blue sol.,alkal. 250 ml 31568-25 1
Boiling beads, 200 g 36937-20 1
Butane burner with cartridge, 220 g 32180-00 1

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