Skunks, raccoons, dogs, and cats can also transmit the disease. Human rabies is rare in the United States. There have been only 55 cases diagnosed since 1990. However, between 16,000 and 39,000 people are treated each year for possible exposure to rabies after animal bites.
Acidic dye is defined as a negatively charged dye, which contains one or more acidic groups, such as a sulfo group. A basic dye, on the other hand, is a positively charged stain that is usually synthetic and reacts with negatively charged particles. Continue Reading.
A dye is a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and may require a mordant to improve the fastness of the dye on the fiber. Both dyes and pigments are colored because they absorb some wavelengths of light more than others. In contrast to dyes, pigments are insoluble and have no affinity for the substrate.