level: Bentonite Identification Test
Questions and Answers List
level questions: Bentonite Identification Test
| Question | Answer |
|---|---|
| Shines brightly | mounted in cresol and observed in dark polarized light |
| permanent red stain | Bentonite +1% safranin in 70% alcohol |
| deep blue color | Bentonite + 0.1% methylene blue |
| swell, disintegrates and forms jelly-like matrix | Bentonite in Alcohol + Water |