In an alginate impression material trisodium phosphate is the: A-filler B-reactor C-retarder D-accelerator?

c. retarder

its helps to slow down the reaction

retarder  in the alginate composition to setting material.

trisodium phosphate acts as retarder

in alginate hydrocolloid tri calcium phosphate is the retarder . that react with calcium sulphate  which  is the reacter which helps in setting of alginate, by reacting with main ingredient sodium or potassium alginate to form calcium alginate.

trisodium  phosphate is adde for to slow down the reaction   and the answer is ,,c,, it is retarder

In order achieve adequate working time - retarder such as trisodium phospate is added to slow down the reaction time for mixing.

  i think the answer is C-retarder

trisodium phosphate added as a retarder to slow down the reaction .

it act during mixing as a RETARDER

D - IT ACTS AS A RETARDER.