HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (12 Oct 2025)

YS/T 239.1-2010 English PDF

US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 239.1-2010: Methods for chemical analysis of antimony trisulfide. Part 1: Determination of arsenic content. Cerium sulfate titration method

YS/T 239.1: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YS/T 239.1-2010English209 Add to Cart 3 days [Need to translate] Methods for chemical analysis of antimony trisulfide. Part 1: Determination of arsenic content. Cerium sulfate titration method   YS/T 239.1-2010
YS/T 239.1-1994English199 Add to Cart 2 days [Need to translate] Chemical analysis of antimony trisulfide Obsolete YS/T 239.1-1994

PDF similar to YS/T 239.1-2010


Standard similar to YS/T 239.1-2010

GB/T 3884.2   GB/T 3884.1   YS/T 252.1   YS/T 252.7   YS/T 252.8   YS/T 252.6   

Basic data

Standard ID YS/T 239.1-2010 (YS/T239.1-2010)
Description (Translated English) Methods for chemical analysis of antimony trisulfide. Part 1: Determination of arsenic content. Cerium sulfate titration method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H13
Classification of International Standard 77.120.01
Word Count Estimation 6,656
Date of Issue 2010-11-22
Date of Implementation 2011-03-01
Older Standard (superseded by this standard) YS/T 239.1-1994
Regulation (derived from) MIIT (2010) No. 126
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the antimony trisulfide Determination of antimony content. This standard applies to antimony trisulfide antimony content. Measuring range: mass fraction of antimony 73. 00% ~ 68. 00%.

YS/T 239.1-2010: Methods for chemical analysis of antimony trisulfide. Part 1: Determination of arsenic content. Cerium sulfate titration 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 antimony trisulfide.Part 1. Determination of arsenic content.Cerium sulfate titration method ICS 77.120.01 H13 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 239.1-1994 Antimony trisulfide chemical analysis Part 1. Determination of antimony content cerium sulfate titration Part 1. Determinationofarseniccontent- Issued on. 2010-11-22 2011-03-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 239 "Methods for chemical analysis of antimony trisulfide" There are seven sections. --- Part 1. Determination of antimony content cerium sulfate titration; --- Part 2. Determination of the amount of sulfur compounds and combustion titration method; --- Part 3. Determination of free sulfur content and combustion titration method; --- Part 4. aqua regia insolubles - Gravimetric method; --- Part 5. Determination of arsenic content of arsenic molybdenum blue spectrophotometric method; --- Part 6. Determination of iron content of phenanthroline spectrophotometry; --- Part 7. Determination of lead content by flame atomic absorption spectrometry. This section is in accordance with GB/T 1.1-2009 given rules drafted. This is Part 1. The partial replacement of YS/T 239.1-1994 "Determination of antimony trisulfide chemical analysis of antimony potassium bromate volumetric method." versus YS/T 239.1-1994 compared to this part of the following changes. --- Potassium bromate volumetric method to cerium sulfate titration; --- Text format has been modified; --- Complements the precision and quality assurance and control provisions. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. tin mine flash-antimony industry limited liability company. This section is drafted. Tin Mine flash-antimony industry limited liability company. Participated in the drafting of this section. Beijing General Research Institute of Mining and Metallurgy, Tongling Nonferrous Metals Group Company. The main drafters of this section. Wu Donghua, Song should ball, Wusheng Lan, Zhang Wei, Cheng Haoyu, Yindong Xia. This part of the standard replaces the previous editions are. --- YS/T 239.1-1994; --- GB 3255.1-1982. Antimony trisulfide chemical analysis Part 1. Determination of antimony content cerium sulfate titration

1 Scope

This section YS/T 239 specifies the method for determination of antimony trisulfide antimony content. This section applies to the determination of the amount of antimony trisulfide antimony. Measurement range. antimony mass fraction of 68.00% ~ 73.00%.

2 Method summary

Sample decomposition with sulfuric acid, hydrazine sulfate reducing pentavalent antimony, trivalent antimony with methyl orange as indicator, at 80 ℃ ~ 90 ℃ with cerium sulfate standard Quasi titration titration.

3 Reagents

Unless otherwise indicated, the reagents used in this section refer to water and recognized analytical reagent and tertiary water. 3.1 potassium sulfate. 3.2 hydrazine sulfate. 3.3 sulfate (ρ1.84g/mL). 3.4 hydrochloride (ρ1.19g/mL). 3.5 sulfate (12). 3.6 hydrochloride (11). 3.7 methyl orange indicator (1g/L). 3.8 cerium sulfate standard titration solution [c (Ce (SO4) 2) about 0.1mol/L]. 3.8.1 preparation. Weigh 40.50g cerium sulfate [Ce (SO4) 2 · 4H2O], placed in 1000mL beaker, add 50mL sulfuric acid (3.3), stir, gradually warming on a hot plate heated solvent into a paste, and take the white smoke of sulfuric acid for about 20min, remove the cooled, sulfur 150mL Acid (3.5), and then slowly added 400mL of water, and stirred to dissolve clear, cooled and transferred to 1000mL volumetric flask, dilute to the mark with water, Mix well. 3.8.2 Calibration. Weigh 0.2500 three antimony [wSb≥99.99%], were placed in 300mL Erlenmeyer flask with a small amount of water wet, add 12mL sulfuric acid (3.3), heated and dissolved to clear, remove the cooling. The following operations shall be conducted, according to 5.4.3,5.4.4. Along with the calibration blank test. Press (1) is calculated cerium sulfate standard titration solution (3.8) of the actual concentration. c = m × 2000 (V1-V0) × 121.76 (1) Where. c --- cerium sulfate standard titration solution (3.8) of the actual concentration in units of moles per liter (mol/L); m --- quality pure antimony weighed in grams (g); Antimony consumption volume V1 --- titration with cerium sulfate standard titration solution (3.8) in milliliters (mL); V0 --- calibration blank solution consumed cerium sulfate standard titration solution (3.8) the volume in milliliters (mL); 121.76 --- antimony molar mass in grams per mole (g/mol).

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YS/T 239.1-2010_English be delivered?

Answer: Upon your order, we will start to translate YS/T 239.1-2010_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 YS/T 239.1-2010_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 239.1-2010_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.

Question 5: Should I purchase the latest version YS/T 239.1-2010?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 239.1-2010 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.