This sand (or silicon dioxide) is meant for use in column chromatography to help ensure a level silica gel line at the top and bottom of the column. When you pour solvent into the column, it only disturbs the sand layer, and leaves the silica gel layer intact. NC-14263
Sodium Metabisulfite and Urea are commonly purchased together by those extracting gold from scrap material such as e-waste. NC-13438
Sodium Metabisulfite and Urea are commonly purchased together by those extracting gold from scrap material such as e-waste. NC-13439
This Silica Gel 60A is a granular, porous solid commonly used as the stationary phase in column chromatography. NC-14344
Reagent ACS grade — Silver nitrate crystals are colorless, transparent flakes, becoming gray or grayish-black when exposed to light in the presence of organic material. It is a strong oxidizing agent and corrosive. NC-1176
Reagent ACS grade — Silver nitrate crystals are colorless, transparent flakes, becoming gray or grayish-black when exposed to light in the presence of organic material. It is a strong oxidizing agent and corrosive. NC-0846
Reagent ACS grade — Silver nitrate crystals are colorless, transparent flakes, becoming gray or grayish-black when exposed to light in the presence of organic material. It is a strong oxidizing agent and corrosive. Restricted to Standard Ground in continental USA and Canada only. NC-10829
Reagent ACS grade — Silver nitrate crystals are colorless, transparent flakes, becoming gray or grayish-black when exposed to light in the presence of organic material. It is a strong oxidizing agent and corrosive. Restricted to Standard Ground in USA and Canada only. Adult signature required. NC-1540
Granular, ACS — Colorless crystals with slight vinegar smell. Efflorescent. Soluble in water and ether, slightly soluble in alcohol. Ships to destinations in the USA and Canada only. NC-7971
Granular, ACS — Colorless crystals with slight vinegar smell. Efflorescent. Soluble in water and ether, slightly soluble in alcohol. Ships to destinations in the USA and Canada only. NC-11613
Lab grade — This Sodium Bicarbonate is a white, crystalline powder not suitable for baking or medical uses. It is commonly used in the lab as a pH buffering agent, an electrolyte replenisher, systemic alkalizer and in cleaning solutions. NC-10712
Lab grade — Sodium Borate Decahydrate consists of white, noncombustable crystals, slightly water soluble. It is used in fire assaying of gold and other precious metals. The commercial name for Sodium Borate is Borax. NC-1686
