ES-7X cleaning solution is called Environmentally Safe because it is Phosphate Free. It was developed to provide safe and effective cleaning of instruments, glassware, containers, etc. in industry and laboratory. Several convenient package sizes are available. The product is sold in concentrated form so the customer can prepare the appropriate dilution as needed (we recommend diluting to 1% with water, i.e.1:100 dilution. 4% could be used for heavily soiled items). "Ready to Use" pre-diluted versions are available, and ES-7X is stable for long-term storage.