Analytical Concentration (Percentage Purity) of Chemicals

We get a lot of requests from our clients for specific concentrations of Analytical chemicals and reagents. The concentration or if you like percentage purity of a chemical according to Wikipedia is the measurement of the amount of impurities found in a chemical sample.

Whilst we may help to prepare certain chemicals to the concentration required for analytical chemistry, here is a list of common chemicals with their standard concentration. Note that all the chemicals below are analytἱcal grade chemicals.

Related Question: “What is general-purpose, industrial, or analytical grade chemicals and the differences between them?

1. Ethanol 99%
2. Methanol 99.85%
3. Glycerol 99.5%
4. Chloroform 99%
5. Hydrogen Peroxide 50%
6. Acetic acid 99%
7. Nitric acid 63.0%
8. Sodium chloride 98%
9. Ammonium Hydroxide 57.0%
10. Acetic Anhydride (CH3CO)2O 97.0%
11. Ammonium Hydroxide (NH4OH) 57.0%
12. Formic Acid (HCOOH) 90.5%
13. Hydrochloric Acid (HCl) 37.0%
14. Hydrofluoric Acid (HF) 49.0%
15. Nitric Acid (HNO3) 70.0%
16. Perchloric Acid 70% (HClO4) 60.0%
17. Phosphoric Acid (H3PO4) 85.0%
18. Potassium Hydroxide (KOH) 45.0%
19. Sodium Hydroxide (NaOH) 50.0%
20. Sulfuric Acid (H2SO4) 96.0%

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