Give the name of the watery fluid secreted from Brunner's gland in the duodenum

Give the name of the watery fluid secreted from Brunner’s gland in the duodenum. Mention its any two characteristics. What role does it play inside the duodenum?

The Brunner’s gland secretes mucoid fluid.
It has the following characteristics
(i) It is viscous and enzyme-free.
(ii) It is alkaline in nature and enables duodenum to withstand the acid chyme.
(iii) It also protects its wall from getting digested.