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Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium

Chapter 28 · 4 CN codes

• 2815 11 00 00 Sodium hydroxide "caustic soda" solid
• 2815 12 00 00 Sodium hydroxide "caustic soda" in aqueous solution "soda lye or liquid soda"
• 2815 20 00 00 Potassium hydroxide "caustic potash"
• 2815 30 00 00 Peroxides of sodium or potassium