[chehemi123]

I’ve got the following problem..

Silver thiosulfate (Ag2S2O3) and bromine are put together. The solvent is diethyl ether.
Notice:  at low temperatures there is a colourless sediment. When melting this sediment it reacts to a red compound.

I don’t really know what could have happened. Maybe the sediment is silver bromide or silver tetrathiosulfate ? But I am not sure if they are colourless compounds and if they react to a red compound? And what about this red compound?
Could you solve the problem or give me a hint?

That would be awesome…TIA

[Hunter2]

Silver thiosulfat it self is white and its unstable in water. It decompose to silver sulfide sulfur dioxide and sulfur.

Did you add bromine or bromide?

bromine is red brown.

[chehemi123]

the task says bromine...

i thought of a redox reaction:

thiosulfate ions --> tetrathiosulfate ions     (oxidation)
bromine --> bromide     (reduction)

maybe? but what about the colourless compound then? and the red one?

Silver thiosulfat it self is white and its unstable in water.

is colourless = white? and i think there is no water? the solvent is diethyl ether..

thanks for your answer!

[chehemi123]

i just found some information on silver bromide...

it is a white-light yellow (sometimes colourless) sediment,
when melting this sediment it reacts to a red-brown liquid.

maybe thats it?

but what is this red-brown liquid? it must be something different, not silver bromide.
silber bromide may be the colourless sediment..

complicated...