Laboratory chemicals are high-purity substances, including liquids, powders, and gases, specifically manufactured for research, diagnostic testing, and experiments in controlled environments. Ranging from acids and bases to solvents and reagents, these materials are essential for chemical synthesis, analysis, and verifying scientific theories. 

Key Characteristics and Usage

• Purity Grades: These chemicals are classified by purity, such as ACS Grade (highest purity), Reagent Grade, Laboratory Grade, and Technical Grade.
• Safety Requirements: Due to hazards like flammability, toxicity, or reactivity, they require strict adherence to Safety Data Sheets (SDS) and handling procedures.
• Function: They act as reactants (consumed in reactions) or reagents (used to detect/measure substances) in labs. 

Applications
Lab chemicals are used for, but not limited to, molecular biology (DNA extraction), analytical chemistry (spectroscopy, chromatography), and industrial research.