Mini-colorimeter (complete kit with accessories and reagents)

Iron determination with portable colorimeter

This instrument enables to quickly determine by colorimetry the iron content in wines, ciders, and apple juices.

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  • 198200- Mini-colorimeter with accessories and chemicals
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Références concernées

  • 198200-Mini-colorimeter with accessories and chemicals

PRINCIPLE

  • Ferric iron (Fe ³+) with potassium thiocyanate results forms a red color solution of a color intensity proportional to iron concentration. 
  • To determine total iron, hydrogen peroxide oxidizes ferrous iron (Fe²+).
  • In red wines and grape juices, the color reaction is extracted with isoamyl acetate.
 

TECHNICAL FEATURES

  • Measurement range: 0 to 20 mg/l
  • Accuracy: 0.25 mg/l
  • Light source: tungsten lamp
  • Light detector: silicon photocell with narrow band interference filter 525 nm
  • Power supply: 1 battery 9V (about 200 hours of non-stop use)
  • Automatic power-off after 10 minutes of non-use when the meter is in measurement mode
  • Dimensions (H x L x D): 192 x 102 x 67 mm
  • Weight: 290 g

EQUIPMENT AND REAGENTS

  • Mini-colorimeter (Ref. 198201)
  • 1-mark glass pipette (1 ml) (Ref. 602001)
  • 1-mark glass pipette (2 ml) (Ref. 602002)
  • Graduated pipette (5 ml – 1/10) (Ref. 604005)
  • Graduated pipette (10 ml – 1/10) (Ref. 604010)
  • PP pump for pipettes 10 ml (Ref. 606002)
  • Wooden test tube rack (6 holes) (Ref. 650205)
  • Test tube (diameter18 mm) (Ref. 629018)
  • Plastic pipette stand (for 6 pipettes) (Ref. 606005)
     
  • 500 ml potassium thiocyanate 20 % (Ref. 952500)
  • 125 ml hydrogen peroxide (Ref. 990015)
  • 500 ml hydrochloric acid at ¼ (Ref. 950500)
  • 500 ml Isoamyl acetate

Produits associés

Chlorydric acid in 1/4 - 500 ml

950500Chlorydric acid in 1/4 - 500 ml

Potassium thiocianate in 20 % - 500 ml

952500Potassium thiocianate in 20 % - 500 ml

Isoamyl acetat - 500 ml

954500Isoamyl acetat - 500 ml

Hydrogen peroxide - 125 ml

990015Hydrogen peroxide - 125 ml

198200