Author Archives: ksand-support
UN Marking Examples
ElectroPUR SEMI process chemical comparison
Mathematical Uncertainty and Tolerances of pH Buffers and Conductivity Standards
GHS Guide for Classification and Labeling of Chemicals
Reading Lot Numbers on Puritan Products brand Chemicals
Puritan’s lot number consists of 11 digits. As you can see in the chart below, the first four digits of the lot number are the product code.
Freezing Point Chart
Monoethanolamine (MEA) 10°C / 50°F, Glacial Acetic Acid 16.6°C / 63°F, Dimethylaniline (DMA) 2.5°C / 36°F…
Brand / Purity Designations
PharmaPUR®—cGMP-manufactured chemicals, cGMP-manufactured solutions and blends, and products with single compendial designations MultiPUR®—Regulated compendial chemicals that are cGMP-manufactured and meet more than one compendia such as any product that is USP/NF and meets EP, BP, or JP BioPUR®—Non-GMP-manufactured chemicals, non-GMP-manufactured solutions and blends that are typically sold and used in the pharmaceutical and/or biopharmaceutical industry […]
Product Packaging Details
As a supplier and manufacturer of high-purity chemicals, Puritan’s ultimate goal is to select appropriate packaging for its products that will prevent the escape of the material contained in it.
Ammonium Hydroxide drums bulge / expand / contract
Bulging or collapsing of ammonium hydroxide (aqua ammonia) drums is normal and no cause for alarm. Aqua ammonia solutions, at 28 – 29% concentration, boil around 85°F at atmospheric pressure.
