1. Due to the strong redox properties of ferrous sulfate, its packaging is required to be sealed and not in contact with air. Keep away from light. Prevent moisture and rain. It should be stored separately from oxidants, alkalis, and edible chemical raw materials to avoid reactions.
2. The storage method of ferrous sulfate liquid, because the ferrous sulfate solution is acidic, thin iron flakes should be put in the solution. It should be put in a glass bottle and kept away from light. If it is found that the aqueous solution begins to oxidize, iron powder can be added to the deteriorated aqueous solution to cause an ionic reaction to prevent further oxidation.
3. It is best to use polyethylene plastic film bags for ferrous sulfate, with a thickness of not less than 0.05mm. The outer packaging is a plastic woven bag, and the inner bag is tightened with nylon rope twice, or sealed by other equivalent methods. . It needs to be stored in a closed operation and partially exhausted warehouse. Keep away from fire and heat sources, and prohibit mixing with toxic substances.
4. It needs to be stored separately from oxidants and alkali substances, and must not be stored together.
Taking into account the above requirements, storage conditions: low temperature, ventilated, dry warehouse, stored separately from food raw materials. Secondly, the shelf life of ferrous sulfate is related to temperature. It can be kept for more than 6 months without deterioration in autumn and winter, and it has a shelf life of 1 month in summer.