chemical substances in close up

acid ammonia ammonium analytics beautiful blood bluestone bright calcium carbonate chemistry citric copper cream crystal crystals element fertilizer filings glass granulate hexacyanoferrate hydroxide ice industry iron isolated laboratory lacmus leaching light lime macro magnesium mineral nartium natural nitrate nitrogen object organic oxidation phosphate potassium powder prescription reaction salt science sodium solution substance sulfate sulphate sweetener toxic urea vitriol white yellow