Atago 3354 QR-NaOH, Digital Suction-Type NaOH Refractometer, Sodium Hydroxide, NaOH : 0.0 to 38.0% Measurement Range

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Sodium hydroxide, also known as caustic soda or lye, is often prepared as solutions at different concentrations for a number of applications.The QR-NaOH allows the users to measure the concentrations without coming in contact with this alkali. Just plain tap water is sufficient for cleaning and zero-setting.

Measurement RangeNaOH : 0.0 to 38.0%
Temperature : 5 to 40°C
ResolutionNaOH : 0.1%
Temperature : 0.1°C
Measurement AccuracyNaOH : ±0.2 %
Temperature : ±1°C
(with sucrose solution)
Temperature compensation range5 to 40°C(Automatic Temperature Compensation)
Ambient Temperature5 to 40°C
Sample VolumeAt least 2mL
MaterialsMain body and detection section : ABS resin
Sample chamber cover : AS resin
Measurement TimeApproximately 3 seconds
Power Supply006P dry battery (9V)
International Protection ClassIP64
Dust-tight and Protected against splashing water.
Included AccessoriesOne 95 mm stainless pipe, one 95 mm silicon tube
Dimensions & Weight70 × 40 × 210 mm (excluding nozzle), 300 g
The maximum possible length of nozzle: 130 mm
Quantity Break Pricing:
1 items £1175.00 / each  
2-4 items £1012.50 / each save 13.83%
5-9 items £843.75 / each save 28.19%
10 or more items £787.50 / each save 32.98%
  • £940.00
  • £1175.00
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Single-handed operation without contact liquids

Sodium hydroxide, also known as lye and caustic soda,[1][2] is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na+  and hydroxide anions OH−

Sodium hydroxide is a highly caustic base and alkali that decomposes proteins at ordinary ambient temperatures and may cause severe chemical burns. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air. It forms a series of hydrates NaOH·nH 2O. The monohydrate NaOH·H 2O crystallizes from water solutions between 12.3 and 61.8 °C. The commercially available "sodium hydroxide" is often this monohydrate, and published data may refer to it instead of the anhydrous compound. As one of the simplest hydroxides, it is frequently utilized alongside neutral water and acidic hydrochloric acid to demonstrate the pH scale to chemistry students

Compact and easy to carry
Calibration with water
Battery operated
Digital display
Automatic Temperature Compensation

    • SKU
    • Commodity Codes
  • Measurement Range
    NaOH : 0.0 to 38.0%
  • Resolution
  • Measurement Accuracy
    ±0.2 %
  • Measurement Temperature (°C)
    5 to 40
  • Use
    Sodium Hydroxide (NaOH)
  • International Protection Class
  • Manufacturer
    Atago Co Ltd
  • Country of Origin