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The main application scope and compliance management regulations of ethylene oxide
2026/9/18
I. Basic Information of Ethylene Oxide
Ethylene Oxide, abbreviated as EO, has the chemical formula C₂H₄O. At normal temperature and pressure, it is a colorless flammable gas with an ether-like aromatic odor or a sweet taste. At high concentrations, it has a pungent smell. Its boiling point is 10.7℃. When the temperature is lower than the boiling point, it liquefies into a colorless and fluid substance that is highly volatile.
II. Main Compliance Applications of Ethylene Oxide
(1) Medical Low-Temperature Sterilization (Core Mainstream Compliance Use)
Ethylene Oxide sterilization is currently recognized as one of the most mature low-temperature sterilization processes worldwide. It is suitable for most medical devices and consumables that are not resistant to high temperature, high pressure, and humidity.
Related standards: GB/T 16886 series (including GB/T 16886.7-2015 which specifically stipulates the residual amount of ethylene oxide sterilization), YY/T 0698 series (final sterilized medical device packaging materials), GB/T 19633 (final sterilized medical device packaging), etc.
Applicable products: disposable syringes, infusion sets, medical catheters, silicone products, endoscopes, anesthesia equipment, medical non-woven fabrics, implantable medical devices, precision high-molecular medical consumables, etc.
Compliance requirements: Sterilization operations must be carried out in a dedicated sterilization cabinet in a sealed environment. Open use is strictly prohibited; after sterilization, it must undergo thorough decomposition, and the residual amount of ethylene oxide in the product must be strictly controlled (in accordance with GB/T 16886.7), and it can only be put on the market after meeting the standards.
(2) Bulk Industrial Chemical Synthesis (Basic Core Use)
Ethylene Oxide is an indispensable basic intermediate in modern chemical industry, widely used in fine chemicals, new materials, cosmetics, energy, etc., and is the largest usage in the industry:
Synthesis of ethylene glycol, used in polyester fibers, antifreeze, resin material production;
Synthesis of non-ionic surfactants, applied in cosmetics, textile printing and dyeing, oilfield additives, industrial cleaning fields;
Synthesis of ethylamine, polyether polyols, used in polyurethane foam, coatings, adhesives, building material new products production;
Used for the synthesis of various fine chemical derivatives, covering multiple industrial chains.
(3) Special Research Applications
Only research institutions and laboratories with hazardous chemicals usage qualifications can use it under explosion-proof, ventilation, and compliance control conditions for special research such as chemical synthesis and material experiments. Unauthorized and unprotected use is strictly prohibited.
(4) Prohibited and Restricted Uses (Important Compliance Reminder)
Prohibited for use in food, fruits and vegetables, disinfection, spray sterilization. In China, ethylene oxide is not a permitted pesticide (GB 2763 has not yet set the residue limit of ethylene oxide in food), and it is not included in the "List of Food Disinfectant Raw Materials (Components) (2009 Edition)", and cannot be used for food sterilization.
Ethylene Oxide/Carbon Dioxide mixed gas products have industry standards (HG/T 5899-2022), but the compliance of specific fumigation application scenarios needs to be determined based on the current regulations of the use location and the approval of the competent authority.
Individuals and unqualified enterprises are strictly prohibited from purchasing, storing, diluting, or using ethylene oxide gas.
III. Compliance Specifications for Storage, Transportation, and Export
1. Storage Specifications
It should be stored in a dedicated explosion-proof hazardous chemicals warehouse, away from heat sources, open flames, acids, alkalis, oxidants, and kept at a constant temperature and in a dark environment. The storage temperature should be controlled below 30℃, and leakage alarm, explosion-proof ventilation, and emergency fire-fighting facilities should be equipped.
2. Transportation Specifications
Ethylene Oxide in bottles is classified as a high-risk hazardous chemical (UN1040, hazard category 2.3/2.1). Road and waterway transportation strictly follows the "Regulations on the Safety Management of Hazardous Chemicals" and "Regulations on the Management of Road Dangerous Goods Transportation" and "Regulations on the Safety Supervision and Management of Vessel Carrying Hazardous Goods" and other specific regulations. The exhaust pipe of the transportation vehicle must be equipped with a flame retardant device, and the tanker should be equipped with a grounding chain. It is strictly prohibited to mix and transport oxidants, acids, and alkalis.
3. Export Specifications
Export number UN1040 strictly complies with the IMDG international maritime dangerous goods regulations. Complete sets of materials such as compliant MSDS, hazardous chemicals identification reports, packaging inspection certificates, etc. must be provided to meet the import entry standards of all countries worldwide. It should be noted that there are differences in regulatory requirements for ethylene oxide in various countries: The EU has strict limits on the residual amount of ethylene oxide in food (such as the maximum residue limit in grains and fruits is 0.02 mg/kg); The US allows it to be used as an antibacterial agent/pesticide in specific categories such as herbs and spices (except basil), dehydrated vegetables, licorice, sesame, walnuts, etc., and sets a residue limit (such as the maximum residue limit in dried herbs and spices is 7 mg/kg, and in walnuts it is 50 mg/kg).
IV. Summary
Ethylene oxide has both high industrial synthetic value and professional low-temperature sterilization value. It is an indispensable special gas in the chemical and medical fields. All production, operation, use, and export activities must strictly abide by national hazardous chemicals management regulations and industry norms. Relying on professional qualifications and a complete safety control system, safe, compliant, standardized application and trade delivery can be achieved.
Ethylene Oxide, abbreviated as EO, has the chemical formula C₂H₄O. At normal temperature and pressure, it is a colorless flammable gas with an ether-like aromatic odor or a sweet taste. At high concentrations, it has a pungent smell. Its boiling point is 10.7℃. When the temperature is lower than the boiling point, it liquefies into a colorless and fluid substance that is highly volatile.
II. Main Compliance Applications of Ethylene Oxide
(1) Medical Low-Temperature Sterilization (Core Mainstream Compliance Use)
Ethylene Oxide sterilization is currently recognized as one of the most mature low-temperature sterilization processes worldwide. It is suitable for most medical devices and consumables that are not resistant to high temperature, high pressure, and humidity.
Related standards: GB/T 16886 series (including GB/T 16886.7-2015 which specifically stipulates the residual amount of ethylene oxide sterilization), YY/T 0698 series (final sterilized medical device packaging materials), GB/T 19633 (final sterilized medical device packaging), etc.
Applicable products: disposable syringes, infusion sets, medical catheters, silicone products, endoscopes, anesthesia equipment, medical non-woven fabrics, implantable medical devices, precision high-molecular medical consumables, etc.
Compliance requirements: Sterilization operations must be carried out in a dedicated sterilization cabinet in a sealed environment. Open use is strictly prohibited; after sterilization, it must undergo thorough decomposition, and the residual amount of ethylene oxide in the product must be strictly controlled (in accordance with GB/T 16886.7), and it can only be put on the market after meeting the standards.
(2) Bulk Industrial Chemical Synthesis (Basic Core Use)
Ethylene Oxide is an indispensable basic intermediate in modern chemical industry, widely used in fine chemicals, new materials, cosmetics, energy, etc., and is the largest usage in the industry:
Synthesis of ethylene glycol, used in polyester fibers, antifreeze, resin material production;
Synthesis of non-ionic surfactants, applied in cosmetics, textile printing and dyeing, oilfield additives, industrial cleaning fields;
Synthesis of ethylamine, polyether polyols, used in polyurethane foam, coatings, adhesives, building material new products production;
Used for the synthesis of various fine chemical derivatives, covering multiple industrial chains.
(3) Special Research Applications
Only research institutions and laboratories with hazardous chemicals usage qualifications can use it under explosion-proof, ventilation, and compliance control conditions for special research such as chemical synthesis and material experiments. Unauthorized and unprotected use is strictly prohibited.
(4) Prohibited and Restricted Uses (Important Compliance Reminder)
Prohibited for use in food, fruits and vegetables, disinfection, spray sterilization. In China, ethylene oxide is not a permitted pesticide (GB 2763 has not yet set the residue limit of ethylene oxide in food), and it is not included in the "List of Food Disinfectant Raw Materials (Components) (2009 Edition)", and cannot be used for food sterilization.
Ethylene Oxide/Carbon Dioxide mixed gas products have industry standards (HG/T 5899-2022), but the compliance of specific fumigation application scenarios needs to be determined based on the current regulations of the use location and the approval of the competent authority.
Individuals and unqualified enterprises are strictly prohibited from purchasing, storing, diluting, or using ethylene oxide gas.
III. Compliance Specifications for Storage, Transportation, and Export
1. Storage Specifications
It should be stored in a dedicated explosion-proof hazardous chemicals warehouse, away from heat sources, open flames, acids, alkalis, oxidants, and kept at a constant temperature and in a dark environment. The storage temperature should be controlled below 30℃, and leakage alarm, explosion-proof ventilation, and emergency fire-fighting facilities should be equipped.
2. Transportation Specifications
Ethylene Oxide in bottles is classified as a high-risk hazardous chemical (UN1040, hazard category 2.3/2.1). Road and waterway transportation strictly follows the "Regulations on the Safety Management of Hazardous Chemicals" and "Regulations on the Management of Road Dangerous Goods Transportation" and "Regulations on the Safety Supervision and Management of Vessel Carrying Hazardous Goods" and other specific regulations. The exhaust pipe of the transportation vehicle must be equipped with a flame retardant device, and the tanker should be equipped with a grounding chain. It is strictly prohibited to mix and transport oxidants, acids, and alkalis.
3. Export Specifications
Export number UN1040 strictly complies with the IMDG international maritime dangerous goods regulations. Complete sets of materials such as compliant MSDS, hazardous chemicals identification reports, packaging inspection certificates, etc. must be provided to meet the import entry standards of all countries worldwide. It should be noted that there are differences in regulatory requirements for ethylene oxide in various countries: The EU has strict limits on the residual amount of ethylene oxide in food (such as the maximum residue limit in grains and fruits is 0.02 mg/kg); The US allows it to be used as an antibacterial agent/pesticide in specific categories such as herbs and spices (except basil), dehydrated vegetables, licorice, sesame, walnuts, etc., and sets a residue limit (such as the maximum residue limit in dried herbs and spices is 7 mg/kg, and in walnuts it is 50 mg/kg).
IV. Summary
Ethylene oxide has both high industrial synthetic value and professional low-temperature sterilization value. It is an indispensable special gas in the chemical and medical fields. All production, operation, use, and export activities must strictly abide by national hazardous chemicals management regulations and industry norms. Relying on professional qualifications and a complete safety control system, safe, compliant, standardized application and trade delivery can be achieved.
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