Protective equipment should be worn when exposed to a large amount of caustic soda, and work clothes or work caps should be made of cotton or appropriate synthetic materials. Operators must wear work clothes, masks, protective glasses, rubber gloves, rubber aprons, long rubber boots and other labor protection supplies when working.
A neutral and hydrophobic ointment should be applied to the skin. When contacting flake or granular caustic soda, ventilation should be provided in the workplace, and the maximum allowable concentration in indoor air is China MAC 0.5 mg/m3 (calculated as NaOH) and American ACGIH TLVC 2 mg/m3. When you may come into contact with its dust, you must wear a hood-type powered air-purifying dust respirator. When necessary, wear air respirator. Operators must undergo special training and strictly abide by operating procedures. It is recommended that the operator wear a hood-type electric air-supplied filter dust respirator, wear rubber acid and alkali resistant clothing, and wear rubber acid and alkali resistant gloves. Keep away from flammable and combustible materials. Avoid generating dust. Avoid contact with acids. When handling, it should be lightly loaded and unloaded to prevent damage to packaging and containers. Equipped with leakage emergency treatment equipment. Empty containers may be harmful residues. When diluting or preparing solutions, the base should be added to the water to avoid boiling and splashing. Wear protective glasses and gloves to handle the spill, sweep it up, pour it into a large amount of water slowly, rinse the ground with water, and put the diluted sewage into the wastewater system. If the lye touches the skin, it can be washed with 5-10% magnesium sulfate solution; if it splashes into the eyes, it should be washed immediately with a large amount of boric acid aqueous solution; Neutralize with orange juice or lemon juice, drink egg white, milk or vegetable oil and seek medical attention promptly. Emesis and gastric lavage are contraindicated.
Solid sodium hydroxide can be packed in 0.5mm thick steel drums and tightly sealed, with a net weight of no more than 100kg; plastic bags or double-layer kraft paper bags with full or middle opening steel drums; screw-top glass bottles, iron lids Glass bottles, plastic bottles or metal barrels (cans) outside ordinary wooden boxes; screw-top glass bottles, plastic bottles or tin-plated sheet steel barrels (cans) outside full-bottomed lattice boxes, fiberboard boxes or plywood boxes; tin-plated sheet steel barrels (cans), metal drums (cans), plastic bottles or metal hoses outside corrugated boxes. The packaging container should be complete and sealed, and there should be a clear ""corrosive substance"" mark. When transported by rail, steel drums can be transported in gondolas. The packaging should be complete and the loading should be secure at the time of shipment. During transportation, ensure that the container does not leak, collapse, fall, or be damaged, and be protected from moisture and rain. If the packaging container is found to be rusted, cracked, holed, melted and dripped, etc., the packaging should be replaced immediately or shipped as soon as possible, and the damaged container can be repaired by soldering. It is strictly forbidden to mix and transport with flammable or combustible materials, acids, edible chemicals, etc. The transport vehicle shall be equipped with leakage emergency treatment equipment during transportation. Do not store and transport together with flammables and acids. In case of fire, water, sand and various fire extinguishers can be used to put out the fire, but firefighters should pay attention to the corrosiveness of caustic soda dissolved in water.
