Abstract
The present paper deals essentially with the decrease of viscosity of mucus by standing.
As for the relation between the decrease of viscosity and the time, the following empirical relation
(1) is found to be used in good agreement with experimental value
ηt=η1e-K1t+η2e-K2t… (1)
where ηt is the viscosity at time t, and η1, η2, k1 and k2 are constants.
According to equation (1) the viscosity decreasing reaction is divided into two parts : the one represented by the first term of former A-reaction and the later, B-reaction.
From the relation between the change of each term of eq. (1) and that of net work observed by microscope, it is quite possible that A-reaction is closely related to the destruct-reaction of net-work. This hypothesis is easily justified by the experiment of stirring effect.
It is well-known fact that the Net-work-structure is easily destructed by stirring, and it is observed that only the first term of eq. (1) is effected by stirring and the second is not effected.
This finding supports the view mentioned above.
Thus it is said that the above empirical eq. (1) has some theoretical represents the destruct-reaction of Net-work-structure.
The observations are also made on the temperature effect on the rate of reaction.
