CAS RN: 121-75-5

Storage Conditions

Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Recommended storage temperature 2 - 8 deg C
Store in a secure poison location. ... Store in tightly closed containers in a cool, well-ventilated, uninhabited area below 25 deg C. Store to avoid contact with oxidizers and alkaline pesticides. Store where possible leakage from containers cannot endanger the worker. Maintain regular inspection of containers for any leakage. Sources of ignition, such as smoking and open flames, are prohibited where this chemical is handled, used, or stored.
Store in cool, dry, well-ventilated, secure area out or reach of children and animals. ... Do not contaminate food or feed.
Storage of malathion at 54 deg C for 2 weeks resulted in an increase of isomalathion from about 0.05% to 0.2%.
Store at controlled room temperature 20 - 25 deg C (68 - 77 deg F).
Safe Storage of Pesticides. Always store pesticides in their original containers, complete with labels that list ingredients, directions for use, and first aid steps in case of accidental poisoning. Never store pesticides in cabinets with or near food, animal feed, or medical supplies. Do not store pesticides in places where flooding is possible or in places where they might spill or leak into wells, drains, ground water, or surface water. /Residential users/
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