Normal-Saline 0.9% w/v Infusion. 0.9% Sodium Chloride Solution. What is 0.9% Sodium Chloride used for: This product is composed of 0.9 g of sodium chloride (salt) in every 100 mL of water. It is used in adults and children for washing wounds, Hydration of skin and nebulization (used for inhalation solutions). This solution has no preservatives.