Technical Data Sheet
Boutron-Boudet’s reagent
Boiling point (bp) >78 °C
Flash point (flp) 12 °C
ADR 3 II
WGK 1
UN-Nr. 1987
HINT: A few drops of the solution are added to 40 ml distilled water and shaken. The samples with known and unknown water hardness are also mixed with the solution drop by drop and shaken until there is the same amount of foam with the same stability as in the distilled water sample. The water hardness can be calculated from this.
€41.40/Pack Qty.
excl. VAT. | 500 ml per Pack Qty.
Art. No. 1EPX.1
Product details
Boutron-Boudet’s reagent for determination of water hardness according to Boutron and Boudet
The water hardness according to Boutron-Boudet is determined with various water samples of known and unknown hardness. It is a comparison of the amount of foam on different samples.
HINT: A few drops of the solution are added to 40 ml distilled water and shaken. The samples with known and unknown water hardness are also mixed with the solution drop by drop and shaken until there is the same amount of foam with the same stability as in the distilled water sample. The water hardness can be calculated from this.
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| Art. No. | Pack Qty. | Pack. | Price | Quantity | |
|---|---|---|---|---|---|
| 1EPX.1 | 500 ml | glass |
€41.40 |
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In stock
Available (note delivery time)
In procurement
No longer available
Delivery date currently unknown
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- Subtotal: 0.00
Downloads / MSDS
General information
Determination of Water Hardness
Water contains a whole host of salts and other compounds in addition to the gases dissolved in it (oxygen, nitrogen, carbon dioxide). Its most important constituents are magnesium and calcium in the form of their chlorides, sulphates and bicarbonates. These dissolved salts are known as hardeners. The bicarbonates precipitate in the heat (during boiling) as carbonates and are known as carbonate hardness or temporary hardness. The sulphate and chloride compounds are known as permanent hardness or non-carbonate hardness. Total hardness describes the concentration of alkaline earth metal ions in water.
The unit of measurement for water hardness used to be 1 °dH (German degrees of hardness), which corresponds to 10,00 mg CaO or 7,19 mg MgO in one litre of water. Today we use millimoles per litre (mmol/l), whereby 1 °dH corresponds to 0,18 mmol/l of earth metal ions and 1 mmol/l corresponds to 5,6 °dH.
Certificates of Analysis
Type analysis
| Appearance | clear light yellow solution |
| Hardness degrees according to Boutron and Boudet | ≥22 ° |