GB/T 13549-2016 in English
VALIDChlorsulponic acid for industrial use
- Issued on:2016-10-13
- Implemented on:2017-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 13549-2016工业氯磺酸》由TC63（全国化学标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。
Introduction
1. Background and significance of the standard revision
GB/T13549-2016 "Industrial Chlorosulfonic Acid" is a comprehensive revision of the 2008 version of the standard, which mainly makes important adjustments to product quality and technical requirements. This revision takes into account the technological progress of the industry and changes in market demand, optimizes the detection methods, and strengthens safety protection requirements.
2. Comparison of standard frameworks
| Standard version | Appearance requirements | Chlorosulfonic acid content (%) | Sulfuric acid content (%) | Test method |
|---|---|---|---|---|
| 2016 Edition | Superior product: transparent liquid without turbidity First-class product: liquid with slight turbidity is allowed Qualified product: liquid with turbidity is allowed | ≥98.0 (superior product) ≥97.0 (first-class product) ≥96.0 (qualified product) | ≤2.0 (superior product) ≤2.5 (first-class product) ≤3.5 (qualified product) | Potentiometric titration (arbitration method) and chemical titration |
| 2008 Edition | Superior product: transparent liquid without turbidity First-class product: liquid with slight turbidity allowed | ≥98.0 (superior product) ≥97.0 (first-class product) | ≤2.0 (superior product) ≤2.5 (first-class product) | Chemical titration and potentiometric titration |
3. Interpretation of standard technical requirements
3.1 Determination of mass fraction of chlorosulfonic acid and sulfuric acid
Potentiometric titration (arbitration method) is an important improvement in this revision. This method uses a glass electrode and a silver electrode to measure the total acidity and hydrogen chloride content respectively, thereby calculating the mass fraction of chlorosulfonic acid and sulfuric acid.
The test steps include sample preparation, titration analysis and result calculation. Key data such as V1 (sodium hydroxide consumption) and V2 (silver nitrate consumption) need to be accurately recorded to ensure the accuracy of the results.
4. Implementation suggestions
- Quality control:Enterprises should establish a complete internal testing system and conduct factory inspection and random inspection in strict accordance with the standards.
- Storage and transportation:Industrial chlorosulfonic acid is a corrosive dangerous good and must be marked in accordance with GB190 regulations, packaged in special containers, and strictly follow the transportation rules for dangerous goods.
- Safety protection:Operators should wear protective equipment and take emergency measures in time in case of accidents. Clause 7.5 of the standard particularly emphasizes the requirements for moisture prevention and leakage treatment.
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