41. A too severe cracking in a visbreaker will lead to the asphaltene colloid becoming metastable . 42. Metastable homogeneous synchronized flow means that for small disturbances, the traffic state remains stable.43. It is therefore logically impossible to build a perfectly metastable -proof flip-flop. 44. Metastable could be defined as stable under very small disturbances but unstable under larger disturbances.45. It is a dark red metastable solid. 46. Reaction intermediates are relatively short-lived, and are usually thermodynamically unstable rather than metastable . 47. Under certain conditions, the metastable . 48. It is then in a metastable state, and we may expect condensation to take place. 49. Thus the Shpolskii systems are an example of a " persistent " metastable state. 50. Silicon, indium, zinc and zirconium allow formation of metastable ? state when rapidly cooled.
