Technical data

Reducing properties of glucose

Article no: P7186900

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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, separable for 2 rods	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
Pipettes with rubber cap, various sizes	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
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