41. In 1671, he presented the research of Francis Jessop on formic acid to the Royal Society. 42. The remaining solution of the catalyst, residual formic acid and additives are recycled to the reaction. 43. It is formed by diluting isobutanol with formic acid ; sulfuric acid can serve as a catalyst. 44. Human studies show that formic acid is excreted faster than it is formed after ingestion of aspartame. 45. It is an unstable colorless liquid which can be produced by mixing formic acid with hydrogen peroxide. 46. It is even known that carbonous acid is a protomer of formic acid in the gas phase. 47. The larva can spray formic acid which is reported to cause blisters or severely irritate human skin. 48. Methanol is not immediately poisonous but breaks down into formic acid , which can cause blindness and death. 49. Q . What is formic acid ? 50. Their stings, however, contain formic acid .
