When suspended in air, liquid paraffin forms a colorless, oily mineral oil mist with a faint burnt lubricant oil scent; its olfactory detection threshold stands at 1.0 ppm, meaning the odor is barely detectable until this concentration is reached.
This product features a specific gravity of 0.865 measured at 60°C, alongside a wide boiling range spanning 250°C to 360°C, which reflects its refined hydrocarbon composition and uniform distillation fraction. It exhibits extremely low volatility under ambient conditions, with vapor pressure kept below 0.5 mmHg at 20°C, drastically limiting airborne vapor generation during regular industrial use.
In terms of fire safety performance, the material delivers outstanding thermal stability: its flash point reaches 193°C, while the autoignition temperature falls within the 260°C–371°C interval. Such high ignition thresholds greatly lower fire and combustion risks even when applied in high-temperature processing environments.
Per the NFPA 704 hazard identification standard, this liquid paraffin carries a hazard rating of Health 0, Flammability 1, and Reactivity 0. A Health rating of 0 confirms negligible adverse health risks under standard handling procedures; the low Flammability grade verifies weak combustion tendency; and a Reactivity score of 0 indicates complete chemical inertness. Furthermore, the product is water-insoluble, showing excellent compatibility with most common industrial raw materials and no tendency to undergo unwanted chemical reactions in various working systems.
Product Name: | Paraffin, liquid |
Synonyms: | PARAFFIN VISCID, EXTRA PURE, DAB, PH. EU R., B. P., PH. FRANC.;VASELINE OIL EXTRA PURE COSMETIC GRADE;VASELINE OIL COLOURLESS FOOD GRADE;ParafinLiquidColourless,Heavy;ParaffinLiquidForIrSpectroscopy;ParafinLiquidColourless,Light;Mineraloil~ Paraffinoil;Paraffin, liquid, pure |
CAS: | |
MF: | unspecified |
MW: | 0 |
EINECS: | 232-384-2 |
Product Categories: | Analytical Reagents;Analytical/Chromatography;Infrared (IR) Spectroscopy;IR Solvents;IR Spectroscopy Solvents;NMR;Solvent by Application;Solvents;Spectroscopy Solvents (IR;UV/Vis);Lipids and Related ProductsPharmacopoeia (USP);Pharmacopoeia A-Z;Core Bioreagents;Research Essentials;IR Spectroscopy;IR Spectroscopy Solvents;Spectroscopy |
Mol File: | Mol File |
Melting point | -24 °C (lit.) |
Boiling point | 300 °C (lit.)
|
Density | 0.827-0.890 g/mL at 20 °C |
Refractive index | n20/D 1.467(lit.) |
Fp | >300°C |
Storage temp | Store at room temperature. |
Solubility | Practically insoluble in ethanol (95%), glycerin, and water; soluble in acetone, benzene, chloroform, carbon disulfide, ether, and petroleum ether. Miscible with volatile oils and fixed oils, with the exception of castor oil. |
Form | Light oil |
Color | White |
Specific Gravity | 0.870 (20/4℃) |
Odor | Odorless |
Water Solubility | Soluble in ether. Sparingly soluble in ethanol. Not miscible or difficult to mix in water. |
Merck | 14,7023 |
Exposure limits | ACGIH: TWA 5 mg/m3 |
Dielectric constant | 2.0（Ambient） |
EPA Substance Registry System | Paraffin oils (8012-95-1) |
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