(arsenic trisulfide) [As2S3] yellow powder
Very old ingredient used in making bright white flames. Do not mix dry orpiment with potassium chlorate. Very limited quantity available, and may not be something we can keep in stock.
[C2H2O4] White, granular powder
Oxalic Acid is a white granular powder used in making metal oxalates for fireworks. Also great as a wood bleach, concrete cleaner, non-abrasive brass cleaner, and rust stain remover.