Sodium Sulfate, Anhydrous, 500g
Lab grade crystals, odorless. — Anhydrous sodium sulfate is used as a drying agent in organic synthesis. NC-6979
$12.95
Sodium Thiosulfate, Pentahydrate, 500g
Lab grade — Appears as white, translucent crystals. Soluble in water, insoluble in alcohol, absorbed in moist air. Used in several patina formulas. See More Info for formula list. NC-0886
$14.95
Sodium Thiosulfate, Pentahydrate, 2.5kg
Lab grade — Appears as white, translucent crystals. Soluble in water, insoluble in alcohol, absorbed in moist air. Used in several patina formulas. See More Info for formula list. NC-2725
$49.95
Sodium Thiosulfate, Anhydrous, 500g
Our ACS Grade anhydrous Sodium Thiosulfate appears as white, translucent crystals. NC-7464
$29.95
Stannous Chloride Test Solution Kit
This kit contains enough material to make 15 one ounce bottles of fresh stannous chloride test reagent for determining the presence of gold, silver, platinum, palladium, and iridium in solution. Concentrated hydrochloric acid is also required and is sold separately. NC-14858
$13.45
Stannous Chloride, 100g
Lab grade — Also known as Tin(II) Chloride and Tin Salt. Can be used to make a Gold Test Solution, as a mordant for dyes, as a soldering flux and in various manufacturing processes. Restricted to Standard Ground only. NC-7784
$24.95
Stannous Chloride, 500g
Lab grade — Also known as Tin (II) Chloride and Tin Salt. Commonly used in solution as a test for precious metals. Can be used as a mordant for dyes, as a soldering flux, and in various manufacturing processes. Restricted to Standard Ground only. NC-1398
$76.95
Starch, Soluble, Powder, Potato, Reagent Grade, 100g
Reagent grade — Appears as white amorphous, tasteless powder. Irreversible gel formation occurs in hot water; swelling can be induced at room temperature with such compounds as formamide, formic acid, and strong bases and metallic salts. NC-13032
$12.95
Strontium Chloride, 100g
Lab Grade, crystal — White with crystalline needles. Odorless with a sharp, bitter taste. Soluble in water and alcohol. It is a source of strontium salts and used in pyrotechnics and electron tubes. It gives a red flame color. NC-2718
$13.95
Strontium Chloride, 500g
Lab Grade, crystal — White with crystalline needles. Odorless with a sharp, bitter taste. Soluble in water and alcohol. It is a source of strontium salts and used in pyrotechnics and electron tubes. It gives a red flame color. NC-11609
$29.95
Sudan III, 125mL (4 oz.)
Sudan III is a dye having high affinity to fats, therefore it is used to demonstrate triglycerides, lipids, and lipoproteins in liquids. It will stain fat cells red. Comes packed in HDPE squeeze bottle with PP flip top cap for dispensing by the drop. Restricted to Standard Ground only. NC-3391
$19.95
Sulfamic Acid, 500g
Lab grade — Sulfamic Acid is a white, non-hygroscopic solid which melts at 305°C, and is stable up to 260°C. Soluble in water. NC-13130
$19.95
