Precautions for storage and transportation of sodium nitrate

Nitric acid is a relatively dangerous chemical reagent. Friends working in the industrial field should pay more attention!

Nitric acid is a relatively dangerous chemical reagent. Friends working in the industrial field should pay more attention. We provide you with a few notes about nitric acid:

Notes on operation: airtight operation, pay attention to ventilation. The operation is as mechanized and automated as possible. Operators must undergo special training and strictly abide by the operating regulations. It is recommended that the operator wear self-priming filter gas mask (full face mask), rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Keep away from fire and heat, smoking is strictly prohibited in the workplace. Prevent vapor from leaking into the workplace air. Avoid contact with reducing agents, alkalis, alcohols, alkali metals. Handle lightly when handling to prevent damage to packaging and containers. Equipped with corresponding varieties and quantities of fire fighting equipment and leakage emergency treatment equipment. Empty containers may be harmful residues. When diluting or preparing solutions, acid should be added to water to avoid boiling and splashing.

Precautions for storage: Store in a cool, ventilated warehouse. Keep away from fire and heat. The storage temperature does not exceed 30 ° C and the relative humidity does not exceed 80%. Keep container tightly closed. It should be stored separately from reducing agents, alkalis, alcohols, alkali metals, etc., and avoid mixed storage. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.

Transportation considerations: Railway tank trucks are loaded. Lead tank trucks are used to transport 98% concentrated nitric acid. Dilute nitric acid should be transported or stored in stainless steel or glass reinforced plastic tank trucks or storage tanks. A small amount is packed in acid-resistant ceramic altar or glass bottle, net weight 33-40kg per altar. Concentrated nitric acid is sealed with acid-resistant mud, and dilute nitric acid is sealed with gypsum. Each altar is packed in a solid wooden box lined with fine coal slag or fine slag for transportation. There should be an obvious "corrosive substance" sign on the packaging. Because there is an oxide film on the surface of aluminum, which is passivating and economical, aluminum is an ideal container for nitric acid. Personal protection Direct skin contact is forbidden. Wear acid- and alkali-resistant gloves, masks, and other labor protection supplies when working.

Effects on human body: Nitric acid is oxidative and corrosive regardless of the concentrated and dilute solution, so it is very dangerous to people, and only splashing on the skin can cause severe burns. The skin will slowly turn yellow after contact with nitric acid, and finally the yellowed epidermis will peel off (after contact with nitric acid and protein, it will cause the yellow protein to react and denature). In addition, concentrated nitric acid should be contained in dark glass bottles to avoid the release of toxic NO2 by light reaction.