Its a solid white stuff thats very alkaline and used in small amounts to adjust the pH of the product and make it just right
Defeating epilepsy: a global public health commitment
(PubMed) Millard HR, Musani SK, Dibaba DT, et al
2 Experimental 2.1 Materials and apparatus Cetyltrimethylammonium bromide (98%, CTAB), triethanolamine (TEA), dimethylformamide (DMF), dimethyl sulfoxide (DMSO), hydrochloride acid (HCl), ethanol, glutathione (GSH), N-hydroxysuccinimide, tetraethyl ortho silicate (98%, TEOS), N, N-dicyclohexyl carbodiimide (DCC), mercapto propyl trimethoxy silane (MPS), dithiothreitol (DTT), citric acid, and phosphate buffer saline (PBS, pH 7.4) were prepared from Merck Company (Darmstadt, Germany)
G., Jung, I., Suk, J., Lee, H., Kim, U., & Lee, J