Silicon to conversion of silicic acid at what ph in animal stomach
Answers
Orthosilicic acid is the chemical compound with formula Si(OH)
4. It is assumed to be present in dilute solutions of silicon dioxide (silica) SiO
2 in water. Outside the marine environment compounds of silicon have very little biological function. Small quantities of silica are absorbed from the soil by some plants, to be then excreted in the form of phytoliths.[4]
Subcutaneous injections of orthosilicic acid solutions (around 1%) in mice were found to cause local inflammation and edema. Peritoneal injections of 0.1 mL of freshly prepared acid were often lethal. The toxicity decreased markedly as the solution aged, to the point that after the solution turned to a gel it had no effects other than mechanical ones. The solutions were equally toxic when administed by intravenous injection, but seasoned or gelled solutions were about as toxic as fresh ones.[2]
Research concerning the correlation of aluminium and Alzheimer's disease has included the ability of silicic acid in beer to reduce aluminium uptake in the digestive system as well as to increase renal excretion of aluminium [5][6]
Choline-stabilized orthosilicic acid (ch-OSA) is a dietary supplement. It has been shown to prevent the loss of tensile strength in human hair;[7] to have a positive effect on the surface and mechanical properties of skin, and on the brittleness of hair and nails;[8] to abate brittle nail syndrome;[9] to partially prevent femoral bone loss in aged ovariectomized rats;[10] to increase the concentration of collagen in calves;[11] and to have a potentially beneficial effect on the formation of collagen in the bones of osteopenic women.[12]