HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

GB/T 23274.1-2009 English PDF

US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 23274.1-2009: Methods for chemical analysis of stannic oxide -- Part 1: Determination of stannic oxide content -- Potassium iodate titrimetric method
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 23274.1-2009English139 Add to Cart 3 days [Need to translate] Methods for chemical analysis of stannic oxide -- Part 1: Determination of stannic oxide content -- Potassium iodate titrimetric method Valid GB/T 23274.1-2009

PDF similar to GB/T 23274.1-2009


Standard similar to GB/T 23274.1-2009

GB/T 23940   GB/T 23834.1   GB/T 23769   GB/T 23274.4   GB/T 23274.5   GB/T 23274.3   

Basic data

Standard ID GB/T 23274.1-2009 (GB/T23274.1-2009)
Description (Translated English) Methods for chemical analysis of stannic oxide -- Part 1: Determination of stannic oxide content -- Potassium iodate titrimetric method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G10
Classification of International Standard 71.040.40
Word Count Estimation 6,680
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 determination of tin dioxide in tin dioxide. This section applies to the determination of tin in tin dioxide dioxide. Measurement range of > 95%.

GB/T 23274.1-2009: Methods for chemical analysis of stannic oxide -- Part 1: Determination of stannic oxide content -- Potassium iodate titrimetric 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 1. Determination of stannic oxide content.Potassium iodate titrimetric method ICS 71.040.40 G10 National Standards of People's Republic of China Methods for chemical analysis of tin dioxide Part 1. determination of the amount of tin dioxide Potassium iodate titration Released in.2009-01-05 2009-11-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

GB/T 23274-2009 "tin dioxide chemical analysis method" is divided into eight parts. - Part 1. Determination of the amount of tin oxide Potassium iodate titration; - Part 2. Determination of iron content - 1,10 - phenanthroline spectrophotometric method; - Part 3. Determination of arsenic content - Arsenic antimony molybdenum blue spectrophotometric method; - Part 4. Determination of lead and copper - Flame atomic absorption spectrometric method; - Part 5. Determination of antimony content - Malachite green spectrophotometric method; - Part 6. Determination of sulphate - Visual turbidimetric method; - Part 7. Determination of hydrochloric acid soluble matter - Gravimetric method; Part 8. Determination of ignition weight loss - Weight method. This section is part 1. This part is made by China Nonferrous Metals Industry Association. This part of the National Standardization Technical Committee of Nonferrous Metals. This part is drafted by Yunnan tin industry group limited liability company. This part is drafted by Liuzhou Huaxi Group Co., Ltd. and Yunnan Honghe State Entry-Exit Inspection and Quarantine Bureau. The main drafters of this part. Ding Xibo, Gao Chunxia, Li Hongying, Lin Wenfeng, Jiang Zhai, Tan Liuping, Wang Lixian. Methods for chemical analysis of tin dioxide Part 1. determination of the amount of tin dioxide Potassium iodate titration

1 Scope

This part of GB/T 23274 specifies the method for the determination of tin dioxide in tin dioxide. This part applies to the determination of tin dioxide in tin dioxide, the determination of the range of > 95%.

2 method summary

Samples with zinc powder - sodium hydroxide melting, hydrochloric acid leaching, with iron powder and metal aluminum to tin reduced to divalent. To starch as an indicator, with iodic acid Potassium titration solution titration test solution was light blue for the end.

3 reagents and devices

Test water for the three distilled water. 3.1 Zinc powder. 3.2 metal tin (tin mass fraction ≥ 99.85%). 3.3 reduced iron powder (0.074mm). 3.4 Aluminum (aluminum mass fraction ≥99.5%). 3.5 Sodium hydroxide. 3.6 Sodium chloride. 3.7 Hydrochloric acid (1 + 1). 3.8 Potassium iodate standard titration solution [c (1/6KIO3) = 0.05mol/L]. 3.8.1 Preparation. Weigh 17.9 g of potassium iodate in 500 mL of water, add 89.5 g of potassium iodide and 10 g of anhydrous sodium carbonate to dissolve, Dilute to 10L, shake well. Hydrochloric acid (3.7), the conical flask connected to the reduction device. Low temperature heating to dissolve tin, add 20mL water, add 1.5g metal aluminum (3.4). continuous Shake the conical flask to most of the metal aluminum dissolved, continue to heat the boiling test solution to produce large bubbles 1min. Under the protection of carbon dioxide, the cone will be The flask is placed in a cold water tank and cooled to room temperature. Remove the conical flask and immediately add 5 mL of the starch solution (3.9) and titrate the solution with potassium iodate (3.8) titrated to light blue for the end (V 1). At the same time do blank test (V 0). Calculate the actual concentration of potassium iodate standard titration solution according to formula (1) (c). C = 59.35 (V 1 - V 0) × 10-3 (1) Where. The actual concentration of potassium titanate titration solution in moles per liter (mol/L); (SnO2) - the mass fraction of tin; V 1 --- titration, the titration of tin standard solution consumed by potassium iodate standard titration solution volume, in milliliters (mL); When the calibration is carried out, the volume of the potassium titanate standard titration solution consumed in the titration blank test solution is in milliliters (mL); 59.35 - The molar mass of tin (1/2Sn) in grams per mole (g/mol).

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23274.1-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23274.1-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 23274.1-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23274.1-2009_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.