A dense laboratory liquid built for precise mineral separation
Bromoform is a heavy, colorless liquid known for its unusually high density, making it a valued reagent in several specialized industries. This product belongs to the Chemical Raw Materials category, which brings together reagents for research, laboratory and industrial use. The 1 liter packaging suits laboratories, universities and small research facilities that need dependable reagent quality without ordering large industrial volumes.
The most established application of bromoform lies in geology and mining, where its exceptional density makes it an effective medium for heavy liquid separation of minerals. A crushed rock sample is submerged in the liquid, and minerals separate into light and heavy fractions according to their own density, allowing geologists to determine mineral composition, estimate valuable content in ore, and control raw material quality at processing plants. This gravity separation technique is widely used in gemstone prospecting, heavy mineral concentrate studies and sedimentary rock analysis.
Beyond geology, bromoform serves as a reagent and intermediate in organic synthesis for producing other brominated compounds, and it is used in analytical chemistry for refractive index determination of minerals through immersion methods. The liquid also functions as a solvent for certain resins and waxes in research settings, and it is applied for calibrating density meters and hydrometers, where a stable and predictable reference density is essential for accurate instrument readings.
When handling bromoform, standard precautions for volatile halogenated compounds should be followed: work under a fume hood, use appropriate respiratory and skin protection, and keep the liquid away from open flame and ignition sources. Store the product in a tightly sealed dark glass container, in a cool room away from direct sunlight, separated from alkalis, oxidizers and reactive metals. Under proper storage conditions the shelf life is quite long, though periodic checks of container integrity are recommended.
Laboratories working with bromoform frequently order complementary reagents from the same chemical raw materials range. For instance, potassium ferrocyanide is used as a precipitating and purifying agent in analytical chemistry, while magnesium oxide powder serves as a refractory filler and component in ceramics and rubber manufacturing. Facilities working with aqueous solutions also often rely on food grade phosphoric acid, applied as an acidity regulator and reagent in both food processing and analytical procedures.
Dosage of bromoform in preparing a separation liquid depends on the target density of the working solution and the type of material being tested. The reagent should be introduced at room temperature, without heating, since the compound is volatile and sensitive to temperature increases.
Heavy liquid solution for mineral concentrate testing
Bromoform 800 ml
Technical acetone 200 ml
Combine
bromoform with acetone in a sealed glass container, mixing gently until a
uniform liquid of the desired density is obtained. Submerge a crushed rock or
concentrate sample into the prepared solution: heavy mineral grains sink to the
bottom while lighter material rises to the surface, allowing the fractions to
be separated and collected for further laboratory analysis of mineral
composition.