MilliporeSigma
HomePhotometry & ReflectometryAnalytical Method: Analytical Quality Assurance, Standard for Free Chlorine (dichloroisocyanuric acid)

Analytical Method: Analytical Quality Assurance, Standard for Free Chlorine (dichloroisocyanuric acid)

Preparation of a standard solution for free chlorine

Reagents:
Cat.No. 110888 Dichloroisocyanuric acid sodium salt for analysis
Cat.No. 116754 Water for analysis

Preparation of a standard solution:
Dissolve 1.850 g of dichloroisocyanuric acid sodium salt with water for analysis in a calibrated or conformity-checked 1000-ml volumetric flask and make up to the mark with water for analysis. The stock solution prepared according to this procedure has a concentration of 1000 mg/l free chlorine.

Further investigational concentrations may be prepared from this stock solution by diluting accordingly.

Stability:
When stored in a cool place (refrigerator), the stock solution and the diluted investigational solutions remain stable for one day.

Materials
Loading
Sign In To Continue

To continue reading please sign in or create an account.

Don't Have An Account?