Product Description White or offwhite crystal or powder, odorless, tasteless, color becomes dark on meeting light; Slightly soluble in alcohol and propanone, almost insoluble in water, easy solulbe in sodium hydroxide solution or ammonia solution, soluble in dilute hydrochloride acid. Appearance white or offwhite crystal powder Acidity: Not more than 0. 2ml Color of Solution: Not more than Y5BY5GY5 Heavy Metals: Not more than 10PPM Content: 99. 0 ~ 101. 0% Loss on Drying: Not more than 0. 5% Ignition Residue: Not more than 0. 1% Related Matters: Not more than 0. 5% Uses: Sulfa drug, used to treat the infection caused by sensitive bacteria and toxoplasm Packing: Net 25 kgs per fibre drum or as requested Storage: Protect from light, sealed