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GB/T 23274.5-2009 English PDF

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GB/T 23274.5-2009: Methods for chemical analysis of stannic oxide -- Part 5: Determination of antimony content -- Malachite green photometric method
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 23274.5-2009	English	139	Add to Cart	3 days [Need to translate]	Methods for chemical analysis of stannic oxide -- Part 5: Determination of antimony content -- Malachite green photometric method	Valid	GB/T 23274.5-2009

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Basic data

Standard ID	GB/T 23274.5-2009 (GB/T23274.5-2009)
Description (Translated English)	Methods for chemical analysis of stannic oxide -- Part 5: Determination of antimony content -- Malachite green photometric method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G10
Classification of International Standard	71.040.40
Word Count Estimation	6,642
Date of Issue	2009-01-05
Date of Implementation	2009-11-01
Regulation (derived from)	National Standard Approval Announcement 2009 No.2 (Total No.142)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the method for the determination of antimony tin dioxide content. This section applies to the determination of antimony tin oxide content. Measurement range of 0. 00050% to 0. 050 %.

GB/T 23274.5-2009: Methods for chemical analysis of stannic oxide -- Part 5: Determination of antimony content -- Malachite green photometric method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for chemical analysis of stannic oxide.Part 5. Determination of antimony content.Malachite green photometric method ICS 71.040.40 G10 National Standards of People's Republic of China Tin oxide chemical analysis Part 5. Determination of antimony content Malachite Green Spectrophotometry 2009-01-05 release 2009-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 23274-2009 "tin oxide chemical analysis method" is divided into eight sections. Part --- 1. tin oxide amount of potassium iodate titration; Part --- 2. Determination of iron content - 1,10-phenanthroline spectrophotometry; Part --- 3. Determination of arsenic content of arsenic and antimony molybdenum blue spectrophotometric method; Part --- 4. lead and copper contents - Flame atomic absorption spectrometry; Part --- 5. Determination of antimony content Malachite green spectrophotometry; --- Part 6. Determination of sulfate Visible turbidimetric method; Part --- 7. hydrochloric acid soluble Gravimetric method; Part --- 8. Loss on ignition - Gravimetric method. This is Part 5. This part is proposed by the China Nonferrous Metals Industry Association. The non-ferrous metal part by the National Standardization Technical Committee. This section from Yunnan Tin Group Co., Ltd. is responsible for drafting. This section was drafted by Liuzhou China Tin Group Co., Ltd. This section from Yunnan Tin Group Co., Ltd., Yunnan Honghe Entry-Exit Inspection and Quarantine Bureau to participate in the drafting. This part drafters. Lin cream, Luo Peizhen, Yesu Juan, Chen Lin, Jiang Village stretch, Su Yan, Shen Qing, Hu Yu Wei. Tin oxide chemical analysis Part 5. Determination of antimony content Malachite Green Spectrophotometry

1 Scope

This section GB/T 23274 specifies the determination of tin oxide antimony content. This section applies to the determination of tin oxide antimony content was measured in the range of 0.00050% to 0.050%.

2 principle of the method

Sample with sodium hydroxide melt, flooding, hydrochloric acid, hydrochloric acid medium, extracted with benzene antimony anionic complex with malachite green generated green Complex in a spectrophotometer wavelength of 635nm measured absorbance.

3 Reagents

Test water for the three distilled water. 3.1 over anhydrous sodium sulfate. 3.2 sodium hydroxide. 3.3 hydrochloride (ρ1.19g/mL). 3.4 benzene. 3.5 hydrochloric acid (1 + 4). 3.6 hydrochloric acid (1 + 9). 3.7 phosphoric acid (1 + 5). 3.8 stannous chloride solution (100g/L). Weigh 10g of stannous chloride (SnCl2 · 2H2O), added 20mL of hydrochloric acid (3.3), allowed to warm to dissolve, slightly Cold, dilute with water to 100mL, add pure tin (Sn mass fraction 99.999%) the number of tablets. 3.9 sodium nitrite solution (140g/L). 3.10 urea solution (400g/L). 3.11 malachite green solution (2g/L). 3.12 Antimony standard stock solution. Weigh 0.1645g antimony potassium tartrate (KSbOC4H4O6 · 1/2H2O) placed in 250mL beaker, add Into 100mL of hydrochloric acid (3.5), stirring to dissolve, transferred to 1000mL volumetric flask with hydrochloric acid (3.5) Wash the beaker and dilute to volume, mix uniform. This solution 1mL containing 60μg antimony. 3.13 Antimony standard solution. Pipette 25.00mL antimony standard stock solution (3.12) in 500mL volumetric flask, washed with hydrochloric acid (3.5) diluted to the mark with Degree, and mix. This solution 1mL containing 3μg antimony.

4 Sample

The sample should be sealed packaging. Step 5 Analysis 5.1 Sample

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