Zumber Posted March 27 Posted March 27 You can make yellow ( generally towards golden more than yellow) Out of it but sodium oxalate is basic in nature and it readily reacts in presence of water and might heat up composition.
Zumber Posted March 28 Posted March 28 Yes it reacts with magnelium/magnesium and boric acid gives no protection against it. I have experienced heating mixture that contains sodium oxlate and magnelium. You dont use aluminium powder, sodium oxlate is hygrocopic and Nitrate in yellow formulation reacts with aluminium if it is uncoated ( in India sterin coated aluminium is common). With only sodium oxlate you dont get yellow colour you need some oxidizer ( barium or potassium nitrate) in it.
Chandan123 Posted March 29 Author Posted March 29 I have coated alumium powder and sod oxalate is not hygroscopic perhaps your's may have some impurities.
Zumber Posted March 29 Posted March 29 (edited) I dont prefer alumimium powder for star ( except for few stars) due to its ability to make stars hard lit. I prefer magnelium for colour stars. You may need Nitrate in your yellow stars sodium oxlate alone wont work. I recommend not to use aluminium powder use coated magnelium insted. Edited March 29 by Zumber
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