When sodium methoxide is stored, it is easy to absorb moisture and react

Sodium methoxide vapor, mist or dust is highly irritating and corrosive to the respiratory tract. After inhalation, it can cause drowsiness, central inhibition, and anesthesia. It is strongly irritating and corrosive to the eyes and can cause blindness. Skin contact can cause burns. Oral corrosion of the digestive tract, causing abdominal pain, nausea, vomiting; a large number of oral administration can cause blindness and death. Chronic effects have central nervous system inhibition.