GB/T 5686.2-2008: Translated English of Chinese Standard. (GBT 5686.2-2008, GB/T5686.2-2008, GBT5686.2-2008): Ferromanganese, ferromanganese-silicon, nitrogenbearing ferromanganese and manganese metal - Determination of silicon content - Molybdenum blue photometric method, silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric methodThis Part specifies the determination of silicon content in ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese, manganese metal and electrolytic manganese by the molybdenum blue photometric method, silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method. |
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Contents
| 3 | |
Scope | 5 |
Normative references | 6 |
Method II Silicon potassium fluoride titrimetric method | 9 |
Method III Perchloric acid dehydration gravimetric method | 12 |
Test report | 16 |
Common terms and phrases
according acid dehydration gravimetric add 10 mL ammonium ferrous sulfate ammonium molybdate Analysis steps anhydrous sodium carbonate applies blue photometric method bottle calibration chemical analysis Congo red contains cool cover curve decompose Decomposition dehydration gravimetric method determination of silicon determination range mass dissolve electrolytic manganese metal ferromanganese-silicon filter paper fluoride titrimetric method g of sample GB/T grams g heat hot water hydrochloric acid hydrofluoric acid Hydrogen peroxide hydroxide standard solution hydroxide standard titration melt metal and electrolytic mL volumetric flask molybdenum blue photometric nitric acid nitrogen-bearing ferromanganese perchloric acid dehydration phenolphthalein solution 4.2.9 Place the sample plastic platinum crucible potassium fluoride titrimetric precipitate quantitative range mass fraction reagents reddish reference room temperature samples according samples shall pass shake sieve silicon potassium fluoride sodium hydroxide standard standard titration solution sulfuric acid Table test solution Transfer watch glass water to dilute water to wash Weigh
Bibliographic information
| Title | GB/T 5686.2-2008: Translated English of Chinese Standard. (GBT 5686.2-2008, GB/T5686.2-2008, GBT5686.2-2008): Ferromanganese, ferromanganese-silicon, nitrogenbearing ferromanganese and manganese metal - Determination of silicon content - Molybdenum blue photometric method, silicon potassium ... |
| Author | https://www.chinesestandard.net |
| Publisher | https://www.chinesestandard.net, 2020 |
| Length | 16 pages |
| Subjects | › › Business & Economics / Industries / Manufacturing Law / Administrative Law & Regulatory Practice Science / Chemistry / Industrial & Technical Technology & Engineering / Chemical & Biochemical Technology & Engineering / Engineering (General) Technology & Engineering / General Technology & Engineering / Measurement |
| Export Citation | BiBTeX EndNote RefMan |