Potassium Chloride Solution (KCl) Product Overview Product Highlights: AMOUNT: 100 ml (1 M); CAS NUMBER: 7447-40-7; FORM: Clear Liquid; SHELF LIFE: Stable for at least 1 year; PURITY: > 99.9% Description: Provided as a stock solution for making various biological buffers and salt solutions Storage Temp.: +4°C Shipping: EA Usage: For Research Use Only! Not For Use in Humans.