Reaction of malachite green with hydroxide ions

VC4.1.3.1
Reaction of malachite green with hydroxide ions
Reaction of malachite green with hydroxide ions Reaction of malachite green with sodium hydroxide solution
Reaction of malachite green with hydroxide ions

This product is classified as a dangerous good and is not available for online purchase.

For ordering the dangerous good or other information please contact our customer service center.
This experiment/set up contains dangerous goods.
These are not available for online purchase.
You may order the experiment/set up without the dangerous goods.


For ordering the dangerous good or other information please contact our customer service center.
Email: webshopuk@ld-didactic.de
Telephone:+49 (0) 22 33 / 604 – 319
Go to contact form

˟

Request an offer

Thank you for your inquiry. We will get back to you as soon as possible.

˟

Description

Reactions in which a participant in the reaction changes colour are a suitable choice if one wishes to observe the course of a reaction. Such reactions are easy to track photometrically, because the decrease and increase in the extinction rate can be directly converted mathematically into concentration changes.

In experiment C4.1.3.1, the reaction of malachite green with hydroxide ions is monitored with an immersion photometer in a glass beaker. Blue-green at first, the solution loses colour when sodium hydroxide is added. This simple system makes it possible to investigate how the rate of reaction is affected by temperature, concentration and the choice of solvent.

Components of equipment sets

1 524069  4  Immersion photometer S LD
1 524005W2 Mobile-CASSY 2 WiFi LD
1 524220  4  CASSY Lab 2 LD
1 607105  8  Magnetic stirrer mini LD
4 666851  4  Stirring magnet, 25 mm x 6 mm Ø, circular LD
4 664103  4  Beaker, DURAN, 250 ml, squat LD
1 665756  4  Measuring cylinder 500 ml, with plastic base LD
1 665755  4  Measuring cylinder 250 ml, with plastic base LD
1 665753  4  Measuring cylinder 50 ml, with plastic base LD
1 6677991 Analytical balance, 210 g : 0,0001 g LD
1 6045651  4  Spoon-ended spatula, Nickel, 120 mm, 20 mm LD
1 665793  4  Volumetric flask, Boro 3.3, 100 ml LD
1 665997  4  Graduated pipette 10 ml LD
1 666003  4  Pipetting ball (Peleus ball) LD
1 602347  4  Laboratory bottle, 500 ml, GL 45 thread LD
1 30011  4  Saddle base LD
1 30041  4  Stand rod, 25 cm, 12 mm Ø LD
1 666543  4  Double, crossed boss head, 0...16 mm LD
1 666555  4  Universal clamp 0...80 mm LD
1 661243  4  Wash bottle PE 500 ml LD
1 6731670  4  Malachite green, 25 g LD
GHS08GHS05GHS07GHS09 H361d H302 H318 H410
1 6719720  4  Ethanol, denaturated, 1 l LD
GHS02GHS07 H225 H319
1 6736800  4  Sodium hydroxide, pellets, 100 g LD
GHS05 H314 H290
1 6753400  4  Water, pure, 1 l LD
1 additionally required: PC with Windows 7 or higher with WIFI or USB connection

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) C4.1.3.1 Reaction of malachite green with hydroxide ions
Print page

Contact Us

Technical Service & Support:

Online Service Portal
Do you have any questions or suggestions regarding our devices, products, experiments, equipment sets or about our software? You need spare parts? FORM

Repair Service
You would like to register a repair? FORM

Europe
For European distributors, please visit: European distributors
Worldwide requests
Please contact us per email: sales@ld-didactic.de

 Click here for our contact form and postal address.

Contact Us