A black and white monosheet substantially light-insensitive thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one toning agent, wherein the at least one toning agent is selected from compounds represented by formula (I): ##STR1##

wherein R¹ is an alkyl group optionally substituted with a hydroxy, carboxy, carboxy ester, acyl or carbonato group; X is S, O or N—R⁶; R⁶ is an optionally substituted alkyl group; R², R³, R⁴ and R⁵ independently represent a hydrogen atom, a halogen atom or an alkyl, an alkoxy, a thio-alkoxy, a nitro, a cyano, a carboxy, a carboxy ester, an acyl, an aldehyde, an acylamido, a sulphonamido, an acylamino, a carbonato, a hydroxy or an aryl group or at least one of R² and R³, R³ and R⁴ and R⁴ and R⁵ independently represent the atoms necessary to form a carbocyclic or heterocyclic group or at least one of R¹ and R⁵ and R² and R⁶ independently represent the atoms necessary to form a heterocyclic ring; and compounds represented by formula (II): ##STR2##

wherein R⁷ is an optionally substituted alkyl group; Y is S, O or N—R¹⁰; R¹⁰ is an optionally substituted alkyl group; R⁸ and R⁹ independently represent a hydrogen atom, a halogen atom or an alkyl, an alkoxy, a thio-alkoxy, a nitro, a cyano, a carboxy, a carboxy ester, an acyl, an aldehyde, an acylamido, a sulphonamido, an acylamino, a carbonato, a hydroxy or an aryl group or R⁸ and R⁹ represent the atoms necessary to form a heterocyclic or a non-aromatic carbocyclic ring or at least one of R⁸ and R¹⁰ and R⁹ and R⁷ independently represent the atoms necessary to form a heterocyclic ring; and both R⁸ and R⁹ cannot both be an alkyl group.