YS/T 514.1-2009Method for chemical analysis of high-titanium slag and rutile. Part 1: Determination of titanium dioxide content. Ferric ammonium sulfate titration (English PDF)

Foreword

YS/T 514 " Methods for chemical analysis of high-titanium slag and rutile"

consists of the following 10 parts:

- Part 1: Determination of titanium dioxide content - Ferric ammonium sulfate

titration;

- Part 2: Determination of total iron content - Potassium dichromate titration;

- Part 3: Determination of sulfur content - High frequency infrared absorption

method;

- Part 4: Determination of silicon dioxide content - Gravimetric analysis and

molybdenum blue spectrophotometry;

- Part 5: Determination of aluminium oxide content - EDTA titration;

- Part 6: Determination of manganese monoxide content - Flame atomic

absorption spectrometry;

- Part 7: Determination of calcium oxide and magnesium oxide content -

Flame atomic absorption spectrometry;

- Part 8: Determination of phosphorus content - Antimony molybdenum blue

spectrophotometry;

- Part 9: Determination of calcium oxide, magnesium oxide, manganese

monoxide, phosphorus, chromic oxide and vanadium pentoxide;

- Part 10: Determination of carbon content - High frequency infrared

absorption method.

This Part is Part 1 of YS/T 514.

This Part replaces YS/T 514.1-2006 " Methods for chemical analysis of high-

titanium slag and rutile The ammonium ferric sulfate volumetric method for the

determination of titanium dioxide content".

Compared with YS/T 514.1-2006, the main changes in this Part are as follows:

- the added sodium peroxide does not change, but the amount added in

advance is adjusted from 2g to 3g; adjusted the amount of coverage on

the test material from 2g to 1g;

- adjusted the sample weight from 0.2000g to 0.1000g;

- added regulations on the allowable number of interfering elements such as

Methods for chemical analysis of high-titanium slag

and rutile - Part 1: Determination of titanium dioxide

content - Ferric ammonium sulfate titration

1 Scope

This Part of YS/T 514 specifies the determination of titanium dioxide content in

high titanium slag, rutile.

This Part is applicable to the determination of titanium dioxide content in high

titanium slag, rutile. The determination range: >=70%.

This Part is applicable to the determination of titanium dioxide amount in the

test solution of which the content of chromium and vanadium is not more than

3mg, the content of molybdenum and tungsten is not more than 2mg, and the

content of tin and copper is not more than 1mg.

2 Method summary

The test material is melted with sodium peroxide. Use water to leach. In sulfuric

acid and hydrochloric acid medium, use aluminum foil to reduce titanium (IV) to

(III) valence. Under the protection of carbon dioxide gas, use ammonium

thiocyanate solution as indicator. Use ferric ammonium sulfate standard titration

solution to titrate.

3 Reagents

Unless otherwise specified, it shall only use the confirmed analytically-pure

reagents AND distilled water or deionized water or equivalent-pure water.

4 Specimen

5 Analysis steps