pH Measurement of Soap Solutions


Controlling the pH of a solution makes it possible to assess its acidity or, conversely, its alkalinity. This is a crucial point during the preparation of the soap solutions of the emulsions to verify the activation of the emulsifier or in post-production control on the emulsion itself, according to standard NF EN 12850. Variations in pH important between the aqueous phase and the emulsion can reveal important information on the behavior of the emulsified binder.

The pH measurement is carried out using a portable or bench-top pH meter, with a wired or wireless electrode (Bluetooth). An electrode is immersed in the solution to be controlled at a given temperature. The device returns a value between 0 and 7 in the case of an acid solution, and between 7 and 14 in the case of alkaline solutions. The electrodes should be checked and calibrated regularly using buffer solutions of known pH.


EN 12850

Products

Vialab offers a range of pH meters selected to meet the varied needs of the sector, from factory production where portability and robustness will be paramount, to formulation tests in the laboratory where functionality, precision and ergonomics will be favored.

Mobile

Lab Bench

pH-METER | MOBILE

Specifications

It is the essential tool in a binder factory, in order to quickly control the aqueous phases on site before production by direct sampling from the aqueous phase tanks.

Its titanium alloy electrode protects the measuring device in an industrial environment.

  • Supplied with combined pH / Temperature electrode with amplified signal limiting interference
  • Impact-resistant titanium alloy electrode
  • PH range: -2 to 16
  • PH measurement resolution: 0.01 pH
  • Temperature range: -5 to 105°C
  • Temperature resolution: 0.1°C
  • Extra large multi-level digital display screen
  • Simplified 2-point calibration with 2 sets of 3 standard buffers stored
  • Waterproof case and ergonomic design
  • Delivered ready to use with pH / temperature electrode and calibration solutions in a carrying case

F007.120.5118

pH-mètre bluetooth Emulsion

LAB BENCH pH-METER | BLUETOOTH

Specifications

Thanks to its WIRELESS Bluetooth electrode, this bench-top pH meter becomes almost portable. The connection wires are no longer an obstacle during handling. With a range of 10 m, pH measurements can be made by moving the electrode within the laboratory, and no longer solutions near the pH meter. The chemical risk is thus reduced.

 

  • Temperature and pH measurement
  • WIRELESS – Bluetooth
  • Resolution 0.01 and 0.001 pH
  • Range-2.0 to 16.0 pH
  • Accuracy +/- 0.002 pH
  • 5-point calibration
  • Storage of measurements
  • Temperature compensation
  • Cal-Check function for probe status control
  • Worktop and wall docking station
  • Electrode holder

PH electrode:

  • Combined pH / Temperature
  • PH measurement range 0.00 to 12.00
  • Temperature measurement range from -5 to 80°C

Delivered with :

  • 2 × 20 ml of pH 4 and 7 solution
  • 2 × 20 ml cleaning solution
  • USB cable,
  • CR2032 battery for the electrode,
  • AC adapter

F188.120.2202

pH-MÈTRE DE PAILLASSE | EXPERT

LAB BENCH pH-METER | EXPERT

Specifications

  • PH, T°C, mV measurement
  • Resolution 0.1 to 0.001 pH, 0.1 mV, 0.1°C
  • Range-2.0 to 20.0 pH; + – 2000 mV; -20 to 120°C
  • Accuracy +/- 0.002 pH
  • 5-point calibration
  • Storage of measurements (up to 200,000)
  • Temperature compensation from -20 to 120°C
  • Cal-Check function to check the probe status
  • Worktop and wall-mounted docking station
  • Electrode holder

Electrodes:

  • pH glass with double junction / BNC connection
  • Independent T°C

Delivered with :

  • Solution pH 4 and 7
  • Electrolyte solution 30 ml
  • Electrode holder
  • AC adapter

F188.120.5521

Consumables

ph en bouteille de 1L

pH Buffer solution colorless | Bottle 1L

pH 4.0

F007.120.1004

pH 7.0

F007.120.1007

pH 10.0

F007.120.1010

ph en sachets

pH buffer solution colorless | 25 pods of 20 ml

pH 4.0

F007.120.0004

pH 7.0

F007.120.0007

pH 10.0

F007.120.0010

Accessories & Options

Bécher à bec forme basse

BEAKER | LOW FORM | 100 ml

Specifications

  • Low shape with spout
  • Borosilicate glass
  • White graduation
  • Sold by 10

F039.310.0101

Bécher à bec forme basse

BEAKER | LOW FORM | 400 ml

Specifications

  • Low shape with spout
  • Borosilicate glass
  • White graduation
  • Sold by 10

F039.310.0402

POCKET pH-METER

Specifications

For “Out of office” users, the pocket pH-Meter is practical and designed for a wide variety of uses.

Supplied with protective cap, batteries and instructions.
Transparent LCD screens and an elegant design, they are not only quick and simple to use, but they are perfect for users who are looking for a portable device.

 

  • Waterproof and designed to float
  • Double liquid crystal display (LCD)
  • pH from 0 to 14°C and temperature readings of °C displayed simultaneously
  • Renewable junction
  • Easy 1 or 2 point automatic calibration
  • 1,000 hours of battery life

F039.120.8107

ELECTRODE CONSERVATION SOLUTION

Specifications

  • Bottle of 500 ml
  • Solution for the electrode conservation

F188.120.7030