Mysterious Powder

Lab Report

Tests

Vinegar-We wanted to see if it fizzed and turned to a gluey substance. PT-We wanted to see if it was a base or if it turned to a pinkish tint. Iodine-We wanted to see if it had starch or turned a blackish-purplish color. pH-We wanted to how basic or acidic it was.
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Results

Iodine-It turned black and into a gluey substance. pH-We got a pH of 7 or neutral. PT-It was basic because it had a pinkish tint. Vinegar-It fizzed for 30 seconds then sunk to the bottom.

Conclusions

I think it is orange, red, and green. I think it came from the fire extinguisher factory.