Check the listing for details. Ferric Chloride Solution Liquid Etchant 950ml 32oz PCB Etchant. Condition: New. Listed at 23.00 USD. Ferric chloride solution 37-42% (42 degrees baumé) 950 ML Ferric chloride (FeCl3)…………………………………………37 - 42%Specific gravity……………………………………………1.380 – 1.490Ferrous chloride (FeCl2)…………………………………0.000 – 0.750Free acid as HCL…………………………………………0.000 – 1.000Insolubles………………………………………........…39.900 – 47.700Iron (Fe)…………………………………………………12.728 – 14.778Baume…………………………………………………..39.900 – 47.700Certified to NSF/ANSI 60 CAS number: 7705-08-0, Linear formula: FeCl3Molecular weight: 162.20 Lot: PA121523T601Manufacture date: 12-15-2023 Product of USA BRANDCarolina Chemical ABOUT USWe purchase laboratory, industrial and pharmaceutical chemicals in large quantities from trusted and verified suppliers in the United States and internationally and distribute smaller quantities to meet our customers needs while providing friendly customer service. We also manufacture a few chemicals in our warehouse located in Charlotte, North Carolina. SAFETY INFORMATIONDanger! May be corrosive to metals. Causes skin irritation. Causes serious eye damage.