... microbe of epiphyte, mildew, algae and so on to reproduce in organic medium. Toxicity research:BIT ratacute per os LD50is: 1400mg ... toxin and no harm.AT present, BIT is extensively used in water soluble resin paint (latex paint), latex products, acrylic acid ... ink, leather goods and water teratment agents by developed countries in the Occident and Japan. BIT can effectively exterminate several kinds ...