The business later diversified into the production of blasting gelatine, gelignite, ballistite, guncotton, and cordite. Blasting gelatine, gelignite, ballistite, guncotton, and cordite were also produced here. I consisted of 58% nitroglycerin, 37% guncotton, and 5.0% petroleum jelly. Products included cordite, guncotton, gunpowder, and cartridges. These included sleeping drugs, small explosives, guncotton, precipitates, and many more. Abel patented this process in 1865 when the second Austrian guncotton factory exploded. Alfred Nobel then developed ballistite, by combining nitroglycerin and guncotton. Small arms could not withstand the pressures generated by guncotton. Jules Verne viewed the development of guncotton with optimism. The power of guncotton made it suitable for blasting. The Russians used armour-piercing rounds with small guncotton bursting charges and unreliable fuses. Its main composition was 58% nitroglycerine, 37% guncotton and 3% mineral jelly. Also tried were dropping hand-thrown guncotton bombs. Nitrocellulose or "guncotton" is formed by the action of nitric acid on cellulose fibers. The first production of guncotton took place in the Marsh Works in 1847.