Talk about plasma.

Aqueous solution corresponds to the ECM of the blood tissue, and represents 55% of blood volume. Composed from: 91.5% water 7% plasma proteins (albumins 55%, globulins 38%, fibrinogen 7%, they confer to blood its viscosity and allow maintenance of osmotic balance and slightly alkaline medium.) 1.5% other solutes (organic material (triglycerides, cholesterol, glucose, urea...) minerals and electrolytes (Cl, Na, K...) dissolved gases.)