Category Nuances for ferrous_sulfate:

• necessary,
• inorganic,
• iron,
• expensive,
• simple,
• chemical,
• metal,
• soluble,
• acidic,
• insoluble,
• industrial,
• cupric,
• metallic,

Simple Categories for ferrous_sulfate:

• mineral,
• salt,
• chemical,
• material,
• compound,
• hydroxide,