Fehlings Solution B available in 500mL (No. 154193-1), 1L (No. 154193-2) and 4L (No. 154193-3) poly bottles, and 10L (No. 154193-4) and 20L (No. 154193-5) Cubitainers.Alkaline No. 2.Shipping: Sodium Hydroxide Solution/UN1824.