Compared with soda ash, sodium bicarbonate has stable structure. The aqueous solution is strongly alkaline. It is easy to deliquescence and agglomerate in the air, and absorb Co Ψ to form sodium bicarbonate. It can be used and stored according to specifications without decomposition and contact with oxides. Workers should be well protected. If they accidentally touch skin and eyes, they should immediately wash with a large amount of flowing water. It is easily soluble in water and hygroscopic. Soda ash decahydrate is colorless monoclinic columnar crystal with a density of 1.45g/cm3. It will dissolve in crystal water at 34-34.5 ℃ and become powder at 40-50 ℃. Its aqueous solution is alkaline and corrosive. It can react with acid to form corresponding salt and release carbon dioxide. It can be decomposed at high temperature to produce sodium oxide and carbon dioxide. Long term exposure to the air can absorb water and carbon dioxide in the air to form sodium bicarbonate and form hard lumps.
The packing should be complete and the loading should be safe. During transportation, ensure that the container does not leak, collapse, fall or damage. It is strictly forbidden to mix with acids, edible chemicals, etc. During transportation, it should be protected from sunlight, rain and high temperature. The vehicles shall be thoroughly cleaned after transportation.
Soda ash has weak irritation and corrosion. Direct contact can cause skin and eye burns. Inhalation of dust and smoke can cause respiratory tract irritation and conjunctivitis, as well as nasal mucosa ulcer, atrophy and perforation of nasal septum. Eczema, dermatitis, cornlike ulcer and skin relaxation may occur after long-term contact with the solution. The incidence rate of respiratory diseases increased with the exposure of workers exposed to the product. It can cause digestive tract burn, mucosal erosion, bleeding and shock.