Yellow to brick red crystalline mass with rotten egg odor. Melting point 1180°C in vacuum. Density 1.856 g/cm³, denser than water. Extremely hygroscopic and absorbs moisture from air
Nitrate (NO3-) is a color-retaining chemical with CAS numbers 23746-18-1 and others. Chemical structure includes 2D, 3D conformers and crystal structures
Colorless gas with fish or garlic-like odor. Boiling point -126°F, freezing point -209°F. Density 0.746 at -130°F, heavier than air. Slightly soluble in water
Benzo(a)pyrene (BaP) is a polycyclic aromatic hydrocarbon formed from incomplete combustion. Main sources include residential wood burning, coal tar, and cigarette smoke. Found in grilled meats, industrial wastewater, and charcoal-cooked foods
Copper(II) chloride exists as yellowish-brown anhydrous form and blue-green dihydrate. Anhydrous form adopts distorted cadmium iodide structure with octahedral copper centers. Compound is paramagnetic and used in first electron paramagnetic resonance measurements
Colorless liquid with alcohol-like odor. Boiling point 64.7°C, flash point 12°C. Miscible in water, miscible with acids and alkali metals