GB/T 6609.6-2018Chemical analysis methods and determination of physical performance of alumina—Part 6: Determination of potassium oxide content (English PDF)

Foreword

GB/T 6609 "Alumina chemical analysis method and physical property determination method" is divided into 37 parts.

---Part 1. Determination of trace element content by inductively coupled plasma atomic emission spectrometry;

--- Part 2. Determination of mass loss at 300 ° C and 1000 ° C;

--- Part 3. Determination of silica content by molybdenum blue light method;

--- Part 4. Determination of ferric oxide content by o-phenanthroline spectrophotometry;

---Part 5. Determination of sodium oxide content;

---Part 6. Determination of potassium oxide content;

--- Part 7. Determination of titanium dioxide content by diantipyrylmethane photometric method;

---Part 8. Diphenylcarbazide photometric method for the determination of chromium oxide;

--- Part 9. Determination of copper oxide content by Xinyatongling spectrophotometry;

---Part 10. Benzoylphenylhydroxylamine extraction spectrophotometric determination of vanadium pentoxide content;

--- Part 11. Determination of manganese monoxide content by flame atomic absorption spectrometry;

--- Part 12. Determination of zinc oxide content by flame atomic absorption spectrometry;

--- Part 13. Determination of calcium oxide content by flame atomic absorption spectrometry;

--- Part 14. Determination of fluorine content by spectrophotometric method with ruthenium-purine complex ketone;

---Part 15. Determination of chlorine content by iron thiocyanate spectrophotometry;

---Part 16. Determination of boron trioxide content by curcumin spectrophotometry;

--- Part 17. Determination of phosphorus pentoxide content by molybdenum blue spectrophotometry;

---Part 18. Determination of sulfate content by N,N-dimethyl-p-phenylenediamine spectrophotometric method;

---Part 19. Determination of lithium oxide content by flame atomic absorption spectrometry;

---Part 20. Determination of magnesium oxide content by flame atomic absorption spectrometry;

--- Part 21. butyl rhodamine B spectrophotometric determination of gallium trioxide content;

--- Part 22. Sampling;

---Part 23. Preparation and storage of samples;

--- Part 24. Determination of the angle of repose;

---Part 25. Determination of bulk density;

---Part 26. Determination of effective density pycnometer method;

--- Part 27. Particle size analysis screening method;

---Part 28. Determination of particle size distribution of fine powders of less than 60 µm;

---Part 29. Determination of adsorption index;

--- Part 30. Determination of trace element content by X-ray fluorescence spectrometry;

--- Part 31. Determination of flow angle;

--- Part 32. Determination of the content of alpha-Al2O3 by X-ray diffraction method;

--- Part 33. Determination of wear index;

---Part 34. Calculation method for Al2O3 content;

---Part 35. Determination of specific surface area;

--- Part 36. Determination of flow time;

--- Part 37. Determination of particle size of less than 20 µm.

This part is the sixth part of GB/T 6609.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

This part replaces GB/T 6609.6-2004 "Alumina chemical analysis method and physical property determination method. Flame photometric method for the determination of oxygen Potassium content. Compared with GB/T 6609.6-2004, this section is subject to the following editorial changes.

--- Added provisions for reagent purity and test water (see 2.2);

--- Revised the expression of the calculation formula (see 2.6, 2004 version 7);

--- Revised the repetitive limit (see 2.7.1, 2004 version 8.1);

--- Added Method 2. Flame Atomic Absorption Spectrometry (see Chapter 3);

--- Added provisions for arbitration methods (see Chapter 3).

1 Scope

This part of GB/T 6609 specifies the method for determining the content of potassium oxide in alumina.

This section applies to the determination of potassium oxide content in alumina. Method 1 Determination range. 0.002%~0.12%; Method 2 Determination range. 0.002%~0.20%.

2 Method 1. Flame photometry