Packaging, storage and transportation of Junzheng caustic soda
We know that Junzheng Caustic Soda has a wide range of applications, but as a chemical substance, it needs to pay attention to packaging, storage and transportation, because it also directly affects whether the quality of the product is intact and affected. So, today I will introduce how to arrange the packaging, storage and transportation of flake caustic soda!
Packaging and transportation: The caustic soda is generally a 25kg three-layer plastic woven bag, the inner and outer layers are plastic woven bags, and the middle layer is a plastic inner bag. According to GB13690-92 "Classification and Labeling of Common Hazardous Chemicals", flaky alkali is classified as type 8.2 alkaline corrosion product according to GB13690-92 "Classification and Labeling of Common Dangerous Goods", and the dangerous goods code is 1823. It should be stored in a ventilated and dry warehouse or shed. The packaging container should be completely sealed. It is strictly prohibited to mix with flammable and acid for storage and transportation. Pay attention to moisture and rain during transportation. In case of fire, water, sand and various fire extinguishers can be extinguished. However, firefighters should pay attention to the corrosiveness of water dissolved in caustic soda.
Before storage and transportation, we should understand the physical and chemical properties of Junzheng Caine: the pure product is colorless and transparent crystals with a relative density of 2.130. Melting point 318.4°C. The boiling point is 1390°C. There are two types of caustic soda on the market: solid and liquid: pure solid caustic soda is white, block, flake, rod, granular, and fragile; pure liquid caustic soda is colorless and transparent liquid. Solid caustic soda has strong hygroscopicity. It is easily soluble in water and exothermic when dissolved. The aqueous solution is alkaline and oily, soluble in ethanol and glycerin, but insoluble in acetone and ether. It is highly corrosive and corrosive to fiber, skin, glass, ceramics, etc. Hydrogen is released by the reaction of aluminum, zinc, non-metal boron, and silicon, disproportionates with halogens such as chlorine, bromine, and iodine, and is formed by neutralization with acid Salt and water.
Keep solid sodium hydroxide: pay attention to seal to prevent moisture absorption or carbon dioxide exposure to the air. When using glass bottles to store flake alkali or other forms of sodium hydroxide, glass stoppers are not available. The rubber plug should be replaced. Since sodium hydroxide reacts with silicon dioxide in the glass to form sodium silicate, the stopper and the bottle body are not easy to open.
How to realize that although Junzheng Caine is widely used, its physical and chemical properties are not suitable for close contact, such as corrosiveness. Therefore, it is necessary to maintain packaging, storage and transportation in accordance with the implementation standards and specifications, and to prevent leakage accidents, casualties, and economic losses.
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