Submitted by ivars211 on
Formula:
CaCO3
Synonyms:
Precipitated chalk, Limestone, Calcite, Carbonic acid calcium salt
Description:
Colorless powder. It slowly reacts with NH4ClO4 in presence of moisture. Calcium carbonate is often used in toy fireworks as a cheap substitute for strontium salts, but the flame is reddish orange and not so beautiful as e.g. with SrCO3.
Sources:
A cheap source is the ceramics supply. Price is about $3/kg for the technical grade. you can also get it easely by powdering clean egg shells.
Hazards:
Dust may cause irritation to eyes, skin or respiratory system. Wear gloves, protection goggles and dust mask when manipulating fine powder.
MSDS:
Compositions containing Calcium carbonate :
Veline's peach star Composition 52.89 Potassium perchlorate 8.65 Calcium carbonate 3.61 Strontium carbonate 2.16 Copper (II) oxide 14.42 Parlon 8.65 Red gum 5.77 Magnalium (200 mesh) 3.85 Dextrin |
Veline's purple star Composition 52.88 Potassium perchlorate 11.54 Copper (II) oxide 2.16 Strontium carbonate 0.72 Calcium carbonate 14.42 Parlon 8.65 Red gum 5.78 Magnalium (200 mesh) 3.85 Dextrin |
Veline's yellow starComposition 39.67 Potassium perchlorate 12.69 Barium nitrate 7.93 Barium carbonate 6.49 Calcium carbonate 14.42 Parlon 6.53 Red gum 8.42 Magnalium (200 mesh) 3.85 Dextrin |