Search result: YS/T 1028.3-2015
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Methods for chemical analysis of lithium iron phosphate. Part 3: Determination of phosphor content. Quinoline phosphomolybdate gravimetry
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YS/T 1028.3-2015
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| Standard ID | YS/T 1028.3-2015 (YS/T1028.3-2015) | | Description (Translated English) | Methods for chemical analysis of lithium iron phosphate. Part 3: Determination of phosphor content. Quinoline phosphomolybdate gravimetry | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H71 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 5,544 | | Date of Issue | 2015-04-30 | | Date of Implementation | 2015-10-01 | | Regulation (derived from) | Ministry of Industry and Information Technology Announcement (2015 No. 28) | | Issuing agency(ies) | Ministry of Industry and Information Technology of the People's Republic of China | | Summary | This Standard specifies the method for determination of lithium iron phosphate in phosphorus content. This section applies to the determination of lithium iron phosphate phosphorus content. Measuring range: 16% to 20%. |
YS/T 1028.3-2015
Methods for chemical analysis of lithium iron phosphate Part 3. Determination of phosphor content Quinoline phosphomolybdate gravimetry.
ICS 77.120.99
H71
People's Republic of China Nonferrous Metals Industry Standard
Methods for chemical analysis of lithium iron phosphate
Part 3. determination of phosphorus content
Quinoline phosphomolybdate gravimetric method
Part 3. Determinationofphosphorcontent-
Issued on. 2015-04-30
2015-10-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 1028 "lithium iron phosphate chemical analysis methods," including a total of five sections.
--- Part 1. Determination of total iron content of titanium trichloride reduction dichromate method;
--- Part 2. Determination of the amount of lithium flame photometry;
--- Part 3. Determination of phosphorus content Quinoline phosphomolybdate gravimetric method;
--- Part 4. Determination of carbon content in the high-frequency combustion infrared absorption method;
--- Part 5. calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminum, nickel, cobalt, manganese content - Inductively coupled plasma atomic emission
Spectroscopy.
This section YS/T 1028 Part 3.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) and focal points.
Drafting this Part. Bump cycle Guangdong Technology Co., Ltd., Haimen Yung General Meeting Lithium Co., Ltd., Yantai Zhuo cell materials
Limited.
The main drafters of this section. Lichang Dong, Yu Haijun, Xieying Hao, FUNCTIONALIS Li Nanping, Guwei Juan, Yu Jun, Yang wide, Lijing Lan,
Yangshu Long.
Methods for chemical analysis of lithium iron phosphate
Part 3. determination of phosphorus content
Quinoline phosphomolybdate gravimetric method
1 Scope
This section YS/T 1028 specifies the method for determination of lithium iron phosphate in phosphorus content.
This section applies to the determination of lithium iron phosphate in phosphorus content. Measuring range. 16% to 20%.
2 Method summary
In acidic medium, molybdenum orthophosphate lemon one generation precipitant reacted with quinoline yellow quinoline phosphomolybdate precipitate was filtered, washed, dried, and
The amount of phosphorus content can be determined.
3 Reagents
3.1 hydrochloride (11).
Nitrate 3.2 (ρ≈1.42g/mL).
3.3 nitric acid (11).
3.4 Quimociac reagents.
Solution A --- Weigh 70g of sodium molybdate dihydrate (Na2MoO4 · 2H2O) in 400mL beaker, 100mL of water was dissolved;
Solution B --- Weigh 60g citric acid monohydrate (C6H8O7 · H2O) in 1000mL beaker, 150mL water dissolved,
85mL of nitric acid (3.3);
Solution C --- Solution A was added to solution B and mix;
D --- The 35mL solution of nitric acid (3.2) in 400mL and 100mL of water in a beaker and mix, add 5mL quinoline;
Solution E (Quimociac reagent) --- The solution D was added to solution C, mix. Allowed to stand overnight, over a glass filter paper or sand core crucible
Filtered off, the filtrate was added 280mL of acetone, diluted with water to 1000mL, stored in polyethylene
Bottles or barrels.
The reagents to dark, dark to avoid the heat.
4 Sample
The sample size should be less than 0.10mm.
5. Apparatus
5.1 Oven. Attached automatic temperature controller can control the temperature of 180 ℃ ± 2 ℃.
5.2 filtration device.
5.3 G4 sintered glass crucible. 30mL.
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