Standard No.:	HG/T 5786-2021
English Name:	Propylene carbonate for industrial use
Chinese Name:	工业用碳酸丙烯酯
Professional Classification:	HG    Professional Standard - Chemistry
Source Content Issued by:	MIIT
Issued on:	2021-3-5
Implemented on:	2021-7-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	6500 words
Translation Price(USD):	195.0
Delivery:	via email in 1 business day

Foreword Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of Subcommittee on Organic Chemical Industry of National Technical Committee on Chemical of Standardization Administration of China (SAC/TC63/SC2). Propylene carbonate for industrial use 1 Scope This standard specifies the requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of propylene carbonate for industrial use. This standard is applicable to propylene carbonate for industrial use produced from epoxypropane and carbon dioxide. Molecular formula: C4H6O3 Structural formula: Relative molecular mass: 102.089 (as per the international relative atomic mass in 2018) 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 191 Packaging - Pictorial marking for handling of goods GB/T 3143 Color determination method of liquid chemicals (Hazen unit - Platinum-cobalt scale) GB/T 6324.8 Test methods of organic chemical products - Part 8: Determination of water of liquid products - Carl Fischer coulometric method GB/T 6678 General principles for sampling chemical products GB/T 6680 General rules for sampling liquid chemical products GB/T 6682 Water for analytical laboratory use - Specification and test methods GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 9722 Chemical reagent - General rules for the gas chromatography SJ/T 11568-2016 Solvent for electrolyte solution used in lithium ion battery 3 Product classification Propylene carbonate for industrial use is classified into Extra-pure Grade (Grade S), Cell Grade and Industrial Grade according to its application. Extra-pure Grade (Grade S) is mainly used in power battery industry; Cell Grade is mainly used as the cleaning agent for ordinary lithium ion batteries and electronic products; and Industrial Grade is mainly used as solvent, grease additive, raw materials for organic synthesis, etc. 4 Requirements The technical indexes of propylene carbonate for industrial use shall be as specified in Table 1. Table 1 Technical indexes Item Index Extra-pure Grade (Grade S) Cell Grade Industrial Grade Appearance Colorless and transparent liquid without visible mechanical impurities Chromaticity/Hazen unit (Pt-Co scale) ≤5 ≤10 ≤15 Propylene carbonate, w/% ≥99.995 ≥99.99 ≥99.5 Epoxypropane, w/% ≤0.0005 ≤0.0005 ≤0.2 Propanediol, w/% ≤0.001 ≤0.001 ≤0.2 Dipropylene glycol, w/% ≤0.002 ≤0.003 — Tripropylene glycol, w/% ≤0.0015 ≤0.0015 — Hydroxy-acetone, w/% Reported Reported — Moisture content, w/% ≤0.002 ≤0.003 ≤0.1 Sodium (Na)/(mg/kg) ≤1.0 — — Potassium (K)/(mg/kg) ≤1.0 — — Copper (Cu)/(mg/kg) ≤1.0 — — Iron (Fe)/(mg/kg) ≤1.0 — — Lead (Pb)/(mg/kg) ≤1.0 — — Zinc (Zn)/(mg/kg) ≤1.0 — — Nickel (Ni)/(mg/kg) ≤1.0 — — Chromium (Cr)/(mg/kg) ≤1.0 — — Calcium (Ca)/(mg/kg) ≤1.0 — —

Foreword i 1 Scope 2 Normative references 3 Product classification 4 Requirements 5 Test methods 6 Inspection rules 7 Marking, packaging, transportation and storage Annex A (Informative) Typical chromatogram and relative retention value of components for the determination of propylene carbonate content Annex B (Informative) Safety