Abstract: The invention concerns a coagulating agent for liquid crystal solutions with a base of cellulose substances, characterised in that it contains at least one water soluble additive selected from the group consisting of ammonia, amines of salt of these compounds, the additive being such that the pH of the said coagulating agent is greater than 6. A preferable additive is a salt elected from the group consisting of ammnonium formates, acetates and phosphates, mixed salts of these compounds, or mixtures of these constituents, in particular diammonium orthophosphates (NH4)2HPO4. The invention also concerns a method for spinning a liquid crystal solution with a base of cellulose substances, using a coagulating agent as per the invention, in particular the method called the “dry-jet-wet-spinning” as well as spun articles, fibers or films, obtained by these methods.