Naar de inhoud springen Naar het navigatiemenu springen

EDTA disodium salt solution A

0,1 mol/l - 0,1 N, volumetric standard solution
VE
Verp.
Density (D) 1,038 g/cm³
Boiling point (bp) 100 °C
WGK 1

1 ml corresponds to 5.6 °dH (deutsche Härtegrade). For determination of water hardness.

Contains additional salts for better visibility of the endpoint.
Productdetails

44,65 €/VE 

Excl. btw | 1 l Per VE

Bestelnr. T136.1

Op voorraad
Vrij van verzendingskosten vanaf 250 €
Snelle en betrouwbare levering!
Vanaf 6 VE 42,42 €/VE
Vanaf 24 VE 40,18 €/VE

Productdetails



EDTA disodium salt solution A 0,1 mol/l - 0,1 N, volumetric standard solution

Contains additional salts for better visibility of the endpoint.



EDTA disodium salt solution A
Geselecteerde hoeveelheid:   0
  1. Tussentotaal:  0.00
Bestelnr. VE Verp. Prijs Hoeveelheid
T136.1 1 l plastic

44,65 €

Op voorraad
Beschikbaar
In bestelling
Niet meer verkrijgbaar
Leveringsdatum onbekend
Geselecteerde hoeveelheid:   0
  1. Tussentotaal:  0.00

Downloads / MSDS


Algemene informatie

Volumetric Standard Solutions

A volumetric standard solution is a solution containing a precisely known concentration of a substance. The concentration of a volumetric standard solution is determined using a primary standard, which is accurately weighed and dissolved to make a specific volume. Volumetric standard solutions are made using reagent-grade (p.a.) substances as source materials.


Volumetric Standard Solutions, ready-to-use

The advantages of this over making them yourself are:

  • Manufactured and tested using modern manufacturing and analytical methods
  • Ready-to-use solutions
  • High accuracy for precise analyses
  • Application of NIST-certified reference substances for checking
  • Connection to standard titrators is possible


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.


Analysecertificaten

Hier kunt u uw analysecertificaat voor het geselecteerde product zoeken en downloaden. Geef een chargenummer op.
De volgende analysecertificaten werden gevonden:

Type analysis

Amount-of-substance conc. (20 °C)0,1 mol/l ±0,2 %
Titer0,998 - 1,002