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YS/T 568.6-2008: Chemical analysis methods for zirconium oxide and hafnium oxide. Determination of titamium content. Diantipyrylmethane spectrophotometric method
Status: Valid YS/T 568.6: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 568.6-2008 | English | 169 |
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Chemical analysis methods for zirconium oxide and hafnium oxide. Determination of titamium content. Diantipyrylmethane spectrophotometric method
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YS/T 568.6-2008
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| YS/T 568.6-2006 | English | 199 |
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(Zirconium, hafnium oxide titanium measuring the amount of (b diantipyrine methane absorption spectrophotometry))
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YS/T 568.6-2006
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Basic data | Standard ID | YS/T 568.6-2008 (YS/T568.6-2008) | | Description (Translated English) | Chemical analysis methods for zirconium oxide and hafnium oxide. Determination of titamium content. Diantipyrylmethane spectrophotometric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,629 | | Date of Issue | 2008-03-12 | | Date of Implementation | 2008-09-01 | | Older Standard (superseded by this standard) | YS/T 568.6-2006 | | Regulation (derived from) | NDRC Notice No. 25 of 2008 | | Issuing agency(ies) | National Development and Reform Commission | | Summary | This standard specifies the zirconium oxide, hafnium determination of titanium content. This standard applies to zirconium oxide, hafnium oxide, titanium content. Measuring range: 0. 005% to 2. 5%. | YS/T 568.6-2008: Chemical analysis methods for zirconium oxide and hafnium oxide. Determination of titamium content. Diantipyrylmethane spectrophotometric method
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Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of titamium content.Diantipyrylmethane spectrophotometric method
ICS 77.120.99
H63
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 568.6-2006
Zirconium oxide, hafnium oxide chemical analysis
Determination of titanium content
Two antipyrine DAM spectrophotometry
Posted 2008-03-12
2008-09-01 implementation
National Development and Reform Commission issued
Foreword
YS/T 568 "zirconium, hafnium oxide chemical analysis method" is divided into 11 parts.
--- Part 1. Determination of zirconium and hafnium oxide combined amount of mandelic acid gravimetric method;
--- Part 2. Determination of iron content sulfonic acid spectrophotometry;
--- Part 3. Determination of the amount of silicon silicon molybdenum blue spectrophotometric method;
--- Part 4. Determination of aluminum content of chromium azure S- cylpyridinium chloride spectrophotometry;
--- Part 5. Determination of sodium content by flame atomic absorption spectrometry;
--- Part 6. Determination of the amount of titanium di Zhao DAM spectrophotometry;
--- Part 7. Determination of phosphorus content of antimony salt - ascorbic acid - phosphorus molybdenum blue spectrophotometric method;
--- Part 8. zirconia aluminum, calcium, magnesium, manganese, sodium, nickel, iron, titanium, zinc, molybdenum, vanadium, hafnium content - Inductively coupled plasma fat
Emission spectrometry;
--- Part 9. hafnium oxide of aluminum, calcium, magnesium, manganese, sodium, nickel, iron, titanium, zinc, molybdenum, vanadium, zirconium content - Inductively coupled plasma fat
Emission spectrometry;
--- Part 10. Determination of manganese content - Potassium periodate spectrophotometric method;
--- Part 11. Determination of α- linked furoylhydrazone nickel dioxime spectrophotometric method.
Part is divided into 6 sections.
The partial replacement of YS/T 568.6-2006 "zirconium oxide, hafnium titanium content determination" (formerly GB/T 2590.6-1981).
This portion of YS/T 568.6-2006 compared to the main changes are as follows.
--- Curve by the scope of 0 ~ 2.4μg/mL was adjusted to 0 ~ 3.0μg/mL;
--- Added "7.1 repeatability" clause;
--- Added "8 Quality assurance and control" clause.
The non-ferrous metal part by the National Standardization Technical Committee and centralized.
This part by the Beijing Nonferrous Metal Research Institute, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting.
This part by the Guangzhou Research Institute of Nonferrous Metals, Beijing Nonferrous Metal Research Institute drafted.
The main drafters of this section. Mai Libi, Dai Fengying, Zhang Jin, Liutian Ping, Wang Mulan.
This part of the standard replaces the previous editions are.
--- GB/T 2590.6-1981, YS/T 568.6-2006.
Zirconium oxide, hafnium oxide chemical analysis
Determination of titanium content
Two antipyrine DAM spectrophotometry
1 Scope
This section specifies the determination method zirconium oxide, hafnium titanium content.
This section applies to zirconium oxide, hafnium oxide - Determination of titanium content. Measurement range. 0.005% to 2.5%.
2 Method summary
Samples with sulfuric acid, ammonium sulfate is dissolved (or decomposition with hydrofluoric acid and nitric, hydrofluoric acid, sulfuric acid smoke rush), oxalic acid masking body zirconium,
Hafnium, in order to eliminate the interference of ascorbic acid iron. In sulfuric acid medium, with two titanium antipyryl DAM forms a yellow complex wave spectrophotometer
Measuring the absorbance at 430nm long.
3 Reagents
3.1 ammonium sulfate.
3.2 hydrochloride (ρ1.19g/mL).
3.3 sulfate (ρ1.84g/mL).
3.4 Hydrofluoric acid (ρ1.13g/mL).
Nitrate 3.5 (ρ1.42g/mL).
3.6 two antipyrine DAM solution (50g/L). Weigh 20g two antipyrine DAM, placed in 500mL beaker, add salt 400mL
Acid (1 + 24), heating and stirring until completely dissolved, cooled, filtered into a brown bottle.
3.7 oxalic acid solution (100g/L).
3.8 ascorbic acid solution (10g/L). the time is now equipped with.
3.9 sulfate (1 + 1).
After Weigh 1.0000g titanium [(Ti) ≥99.9%], placed in 250mL platinum dish, add a little water. 3.10 Titanium standard stock solution
Slowly dropping hydrofluoric acid (3.4) to dissolve, then dropping nitric acid (3.5) will be completely oxidized low-cost titanium added 10mL sulfuric acid (3.3), shake
Evaporated on a hotplate until white smoke, remove, cool. Water moved into 1000mL volumetric flask, dilute to the mark with sulfuric acid (1 + 19). This solution
1mL containing 1.00mg titanium.
3.11 Titanium standard solution. Pipette 25mL titanium standard stock solution (3.10), placed in 250mL flask, add 15mL sulfuric acid
(3.9), diluted with water to the mark. This solution 1mL containing 100μg titanium.
4 Instrument
Spectrophotometer.
Step 5 Analysis
5.1 Sample
Table 1 sample was weighed, accurate to 0.0001g.
5.2 Determination of the number of
Independently measured twice and averaged.
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