High-purity propylene refers to propylene (C3H6) products that have been purified by special processes to achieve extremely high purity (usually requiring extremely low impurity content). As a colorless, slightly sweet gas, propylene has good chemical and thermal stability, and its autoignition point is as high as 497°C.
High-purity propylene is an important chemical raw material, widely used in plastics, rubber, textiles, coatings and other industries. In order to ensure the quality of high-purity propylene products, a series of product quality standards have been formulated. The following is a detailed introduction to the quality standards of high-purity propylene products.
1. Appearance requirements
High-purity propylene should be a colorless, transparent liquid, free of impurities, suspended matter, sediment, and odor.
Physical properties
1. Density: 0.890g/cm3
2. Boiling point: 42°C
3. Ignition point: -18°C
4. Refractive index: 1.422
III. Chemical indicators
1. Purity: >99.9%
2. Moisture content: ≤50mg/kg
3. Acidity (in HCI): <0.0001%
4. Alkalinity (in NaOH): <0.0001%
5. Chloride ion content: <lmgkg
6. Copper ion content: <0.01mg/kg
7. Iron ion content: <0.01mg/kg
8. Peroxide content: ≤1mgkg
IV. Packaging and storage requirements
High-purity propylene should be transported by stainless steel tank trucks or stainless steel tanks and stored in a cool, dry, ventilated warehouse to avoid direct sunlight and rain.
The above is a detailed introduction to the quality standards of high-purity propylene products. The formulation and implementation of these standards are of great significance to ensure the quality and safe use of high-purity propylene products. During production and use, operations should be carried out in strict accordance with these standards to ensure the quality and safety of high-purity propylene products.
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