Technical Articles

Supplier:

Sigma-Aldrich


Sigma-Aldrich has published these technical articles:

(Calibration and Testing Services)
From this Article:
Boric Acid Gel is a cross-linked polymer insoluble in water and all organic solvents. It is prepared by the cross-linking copolymerization of dihydroxyborylanilino-substituted methacrylic acid with... (View Full Article)
(Chemicals and Raw Materials)
From this Article:
Dihydropyran, a versatile vinyl ether, reacts with alcohols under mild acid catalysis1 (p-toluenesulfonic acid or, more effectively, boron trifluoride etherate2) to form tetrahydropyranyl ethers which... (View Full Article)
(Gas Sensing)
From this Article:
Aldrich lecture bottle and specialty gas regulators are designed for use with dry (anhydrous) gases at a normal operating temperature of 70°F (21°C) and maximum inlet pressure of 3000psig. Certain... (View Full Article)
(Material Handling and Packaging Services)
From this Article:
A variety of air-sensitive reagents are available from Sigma-Aldrich. Since these reagents react with water, oxygen, or both, they must never be exposed to the atmosphere. The remarkable chemistry of... (View Full Article)
(Chemicals and Raw Materials)
From this Article:
Sulfur trioxide, stabilized (Sulfan®, sulfuric anhydride) is a powerful sulfurating agent, very strong oxidizer, and strongly acidic.... (View Full Article)
(Calibration and Testing Services)
From this Article:
Aldrich is proud to offer a complete line of polymer products. This includes fine microparticle products and in-depth technical assistance in selecting, processing, and using these products. Our... (View Full Article)