41. Commercial sulfuric acid is sold in several different purity grades. 42. Two more spills of sulfuric acid last March and April killed thousands more fish. 43. Venus is brilliant mainly because it is perpetually shrouded in clouds of sulfuric acid . 44. Abandoned gold mines still drain sulfuric acid and other toxic waste into the river. 45. When these salts oxidize they form sulfuric acid , which eats away at the wood. 46. Nine of the derailed cars were carrying propane and two others contained sulfuric acid . 47. Local firefighters and state emergency personnel worked Friday night to dilute spilled sulfuric acid . 48. This process allowed the effective industrialization of sulfuric acid production. 49. Nine were carrying propane and two cars carried sulfuric acid . 50. Some of the train's other cars were carrying sulfuric acid and propane, Meyer said.
