Radiographic silver halide photographic material having a good developing speed, an excellent image tone and low residual color after processing

A black-and-white silver halide negative working photographic material comprising a subbed transparent support, and, in order, at one or both sides thereof, at least one light-sensitive silver halide emulsion layer, and a protective layer, wherein said material is spectrally sensitized in the wavelength range from 540-570 nm, wherein at least one light-sensitive emulsion layer thereof comprises tabular grains having a thickness in the range from 0.04 μm up to 0.20 μm, wherein said grains having an aspect ratio in the range from 5:1 up to 50:1 represent a projective surface area of at least 70% of the total projected surface of all grains present in the emulsion and wherein said material comprises at least one compound according to general formula (I)

• wherein:
• X represents a functional group containing sulfur, apart from a thiol group or a thiolate;
• Y is selected from the group consisting of an oxygen atom, a sulfur atom, NR2, NNR3R4 and N—N═CR5R6
• R1 is selected from the group consisting of hydrogen, a heteroatomic group, an aryl or heteroaryl group, S—R7 and NR8R9;
• R2, R5, R6 and R7 are selected from the group consisting of hydrogen, an aliphatic or heteroatomic group, an aryl or heteroaryl group;
• R3, R4, R8 and R9 are selected from the group consisting of hydrogen, an aliphatic or heteroatomic group;
• an aryl or heteroaryl group, an acyl group, a sulphonyl group and a phosphoryl group;
• wherein any of R3 and R4, R5 and R6, R8 and R9 may represent atoms necessary to form a five to eight membered, and wherein R1 and Y may form a five to eight membered ring, further characterized in that at least one of Y and R1 is substituted by a solubilizing group having a pKa of 10 or less.