Category Nuances for phosgene:

• soluble,
• insoluble,
• toxic,
• sensitive,
• critical,
• irritating,
• suffocating,
• key,
• vesicant,
• acidic,
• corrosive,
• poisonous,
• deadly,
• noxious,
• real,
• respiratory,
• volatile,
• chemical,

Simple Categories for phosgene:

• gas,
• system,
• fluid,
• substance,
• fumes,