Sodium chloride, chemical formula NaCl, colorless cubic crystal or fine-grained powder, containing salt. The appearance is white crystal, and its source is mainly seawater, which is the main component of salt. Soluble in water and glycerol, slightly soluble in ethanol (alcohol) and liquid ammonia; Insoluble in concentrated hydrochloric acid. Impure sodium chloride deliquesces easily in the air.

Use of sodium chloride

Sodium chloride injection can supplement blood volume and sodium ions, and can be used for various salt-deficient dehydration diseases (such as extensive burns, severe vomiting and diarrhea, profuse sweating, diuretics, bleeding, etc.). ). When there is massive bleeding and blood transfusion is impossible, sodium chloride injection can be injected to maintain blood volume for first aid.

Working at high temperature in summer, sweating a lot and losing a lot of sodium chloride often cause "heatstroke". You can add 0. 1% ~ 1% sodium chloride to drinking water, or use salty refreshing tablets to dissolve in boiling water for drinking.

External use of 0.9% sodium chloride solution can wash eyes, bladder and wounds.

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