GB/T 2463-2008Pyrites and concentrate - Determination of total iron content - Cerium sulfate volumetric and potassium dichromate volumetric methods (English PDF)
硫铁矿和硫精矿中全铁含量的测定 硫酸铈容量法和重铬酸钾容量法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 14, 2008
Implementation date
October 1, 2008
Scope
GB/T 2463-2008 is the English-translated version of 硫铁矿和硫精矿中全铁含量的测定 硫酸铈容量法和重铬酸钾容量法.
GB/T 2463-2008 is the Chinese standard "Pyrites and concentrate - Determination of total iron content - Cerium sulfate volumetric and potassium dichromate volumetric methods".
Its scope clause reads: This standard specifies the Pyrites and concentrate - total iron content of sulfuric acid and potassium dichromate volumetric method cerium volumetric method.
This standard applies to Pyrites and concentrate products total iron content greater than 10% was measured. Its clauses include sample; general provisions; analysis.
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Document preview — GB/T 2463-2008
National Standard of the People's Republic of China
- ICS
- 73.060.01
- Classification
- D 51
- Replacing
- GB/T 2463.2-1996
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Sample
- 4 General Provisions
- 5 Analysis
1 Scope
This standard specifies the Pyrites and concentrate - total iron content of sulfuric acid and potassium dichromate volumetric method cerium volumetric method.
This standard applies to Pyrites and concentrate products total iron content greater than 10% was measured.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 6003.1 woven wire mesh test sieve (GB/T 6003.1-1997, eqv ISO 3310-1.1990)
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987)
3 Sample
The sample passes through 150µm test sieve (GB/T 6003.1), at 100 °C ~ 105 °C drying to constant weight, placed in a desiccator, cooled to
Room temperature.
4 General Provisions
The water of this standard shall comply with GB/T 6682 water in three specifications; reagents listed Unless otherwise specified, refer to analytical reagent.
5 Analysis
5.1 Cerium sulfate volumetric method
5.1.1 Method summary
Samples with sodium hydroxide, sodium peroxide melt in hydrochloric acid medium, with hypophosphite reducing ferric ions, sodium for diphenylamine
Indicator, cerium sulfate standard titration solution titration, you can find the total iron content.
5.1.2 Reagents and solutions
5.1.2.1
sodium hydroxide.
5.1.2.2
sodium peroxide.
5.1.2.3 hydrochloric acid solution
1 + 1.
5.1.2.4 hypophosphite solution
100g/L.
5.1.2.5 sodium sulfite anhydrous
1g/L.
5.1.2.6 sulfuric acid - phosphoric acid mixed solution
stirring the sulfuric acid was slowly added to 500mL 200mL water, then adding cooled
300mL phosphoric acid, and mix.
5.1.2.7 ferrous ammonium sulfate solution
0.05mol/L. Weigh 1.96g of ferrous ammonium sulfate [(NH4) 2Fe (SO4) 2 · 6H2O] was dissolved in a small
The amount of water, add 10 drops of sulfuric acid and transferred to 100mL volumetric flask, dilute to the mark, shake.
5.1.2.8 Iron standard solution
1.00mg/L. Weigh 1.4297g ferric oxide (high purity) in 250mL beaker, add 50mL
Hydrochloric acid solution, cover the surface of the pan, over low heat to dissolve completely cooled and transferred to 1000mL volumetric flask, dilute to the mark, shake. this
Solution of iron (Fe) the amount of 1.00mg/mL.
GB/T 1868-1995 | GB/T 1870-1995 | GB/T 1873-1995 | GB/T 2468-2008 | GB/T 2467-2008 | GB/T 2466-2008 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 2463
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 2463-2008 | Pyrites and concentrate - Determination of total iron content - Cerium sulfate volumetric and potassium dichromate volumetric methods | current edition | Current |
| GB/T 2463.2-1996 | Pyrites and concentrate - Determination of total iron content - Cerium sulfate volumetric and potassium dichromate volumetric methods | previous edition | Superseded |
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