Betekenis van:
hydrofluoric acid

Voorbeeldzinnen

1. hydrofluoric acid … %
2. HYDROFLUORIC ACID
3. hydrofluoric acid
4. Einecs name Hydrofluoric acid, anhydrous hydrofluoric acid
5. Hydrogen fluoride (hydrofluoric acid)
6. Evaporation with hydrofluoric acid may be omitted.
7. Acids, such as chromic acid, hydrofluoric acid, phosphoric acid, nitric acid, hydrochloric acid, sulphuric acid, oleum, sulphurous acids
8. acids, such as chromic acid, hydrofluoric acid, phosphoric acid, nitric acid, hydrochloric acid, sulphuric acid, oleum, sulphurous acids;
9. Dissolves slowly in hydrofluoric acid and in hot concentrated sulfuric acid.
10. Insoluble in water and organic solvents. Dissolves slowly in hydrofluoric acid and in hot concentrated sulfuric acid.
11. Halogens, hydrohalogen acids (hydrochloric and hydrofluoric acids), halogen fluorides; sulphuric acid, sulphur chloride, caustic soda and caustic potash, ammonia
12. The Commission sent questionnaires to all known Community suppliers of the main raw materials (including Chlorodifluormethane (R22) and Anhydrous Hydrofluoric Acid) to the Community industry.
13. If any silica remains in the residue, redissolve it in a few millilitres of hydrofluoric acid (3.4) and evaporate to dryness.
14. Allow to cool, add a few drops of water followed by 10 to 15 ml of hydrofluoric acid (3.4) and evaporate to dryness at about 150 oC.
15. Hydrofluoric acid 38 % to 40 % (v/v) having an iron (Fe) content of less than 1 mg/litre and a residue after evaporation of less than 10 mg (as sulphate)/litre.