What are the properties of white oil?

　White oil: a colorless and transparent oily liquid with no odor. 0.831～0.883, flash point (open cup) 164～223°C, dynamic viscosity (50°C) 5.7～26 mm2/s, acid value ≤0.05. It is stable to acid, light, and heat; it is insoluble in ethanol but soluble in ether, benzene, petroleum ether, etc., and is miscible with most fatty oils. It is a mixture of liquid hydrocarbons, with the main components being mixtures of n- and iso-alkanes with carbon chain lengths ranging from C16 to C31. It is produced by treating high-boiling fractions obtained from petroleum distillation – namely lubricant fractions – through processes such as dewaxing, carbonization, neutralization, and purification using activated clay. Depending on properties such as viscosity, white oil products are available in various grades including 7#, 11#, 15#, 18#, 24#, 48#, 64#, and 100#. Mineral oil is the most widely used oil-soluble ingredient in cosmetics; it can be used to formulate almost all types of cosmetics, including bath oils, various skin care creams and lotions, balms, hair care products, and lipsticks. 　　Commonly known as chemical lard or hydrogenated oil, it is obtained by processing fats and oils in oil mills to remove odors and colors, followed by hydrogenation to varying degrees, resulting in a solid white fat that is mostly used in the production of cookies or as a substitute for lard. 　　Refers to white mineral oil. It is a mineral oil that has undergone special deep refining. Mineral oil is colorless, odorless, chemically inert, and has good light-stability; its basic composition consists of saturated hydrocarbon structures, with virtually no aromatic hydrocarbons, nitrogenous, oxygenous, or sulfur-containing compounds. Due to this extremely high level of refinement, it is difficult to apply it to heavy fractions in actual manufacturing processes; as a result, the molecular weight of white oils is usually within the range of 250–450. It possesses good oxidation stability, chemical stability, and light stability; it is colorless and odorless, and does not corrode fiber textiles. 　　Function: Assists in demolding ； It increases the brightness of products; it is widely used in rubber, and can also serve as a lubricant in stamping dies. 　　Mineral oil Introduction to mineral oil: Mineral oil generally refers to white mineral oils. It is a mineral oil that has undergone special deep refining. Mineral oil is colorless, odorless, chemically inert, and has good light-stability. Its main composition consists of saturated hydrocarbons, with virtually no aromatic hydrocarbons or substances containing nitrogen, oxygen, sulfur, etc. Due to this extremely high level of refinement, it is difficult to apply it to heavy fractions in actual manufacturing processes; as a result, the molecular weight of white oils is usually within the range of 250–450. It possesses good oxidation stability, chemical stability, and light stability; it is colorless and odorless, and does not corrode fiber textiles. 　　Classification and Uses of White Oils White oils are generally classified based on the purity of their saturated hydrocarbons. Common types include industrial white oils, which are used in the processing of chemical fibers and aluminum materials, as well as as plasticizers for rubber. Different categories of white oils have varying applications. Uses of industrial-grade white oil: It is used in industries such as chemical fibers and synthetic fibers, serving as a lubricant, solvent, and coolant in textile processing, which helps to make fibers and fabrics softer and shinier. It can also be used as a wetting agent, solvent, and lubricant in industries such as synthetic resin and plastic processing. It is also suitable for lubricating textile machinery and precision instruments, as well as for use as oil in compressor seals. Cosmetic-grade white oil, suitable as a raw material in the cosmetics industry for producing hair conditioners, hair oils, lipsticks, skin care creams, etc.; it is also used in the food and pesticide industries. Food (pharmaceutical) grade white oil is suitable for food glazing, anti-sticking, defoaming, sealing, and polishing purposes as well as in food processing machinery. It helps to extend the shelf life of wine, vinegar, fruits, vegetables, or canned goods. It can also be used as a base oil for lubricating laxatives, ointments, and medications, as a release agent for tablets and pills, and for providing anti-corrosive lubrication in surgical instruments and pharmaceutical manufacturing equipment. 　　Classification of white oil grades The classification of white oil grades is usually based on the kinematic viscosity at 40°C. The viscosity grades of white oil generally conform to the viscosity grades specified by ISO standards. 　　Quality Standards for White Oil Quality Standards for White Oil Applicable Standard: SH0006-90 Item, Measurement Standard, Quality Index, Test Method 5#, 7#, 10#, 15#, 26#, 32#, 46#, 68# Kinematic Viscosity (40°C), ㎡/s: 4–, 5, 6.1–, 7.5, 9.0–, 11.0, 13.5–, 16.5, 24–, 28, 28.8, –35.2, 41.4–, 50.6, 61.2–, 74.8 CB/T265 Flash Point (Open Cup), not less than °C: 130, 135, 140, 160, 160, 180, 180, 190 CB/T3536 Pour Point, not more than °C: –5, –5, –5, –10, –10, –10, –10, –20 CB/T3535 Color, not less than Saybolt Number: +30, +30, +30, +30, +30, +30, +30, +30 CB/T3555 Corrosion Test (Grade): 100°C, 3 hours: 1, 1, 1, 1, 1, 1, 1, 1 CB/T5096 Moisture Content, %: None, None, None, None, None, None, None, None CB/T260 Mechanical Impurities, %: None, None, None, None, None, None, None, None CB/T511 Water-Soluble Acids or Bases: None, None, None, None, None, None, None, None CB/T259 Appearance: Off-white, Off-white, Colorless, odorless, transparent oily liquid Visual Inspection

1. Technical requirements: Item, Quality criteria, Grade – Premium grade, Qualified grade. Brand numbers: 7, 10, 15, 32, 68. 7, 10, 15. Kinematic viscosity (40%), mm2/s: 6.1–7.5, 9.0–11.0, 13.5–16.5, 28.8–35.2, 61.2–74.8; 6.1–7.5, 9.0–11.0, 13.5–16.5. Standard: GB/T265. Flash point (open cup), °C: not less than 130, 140, 150, 180, 200; 130, 140, 150. Standard: GB/T3536. Pour point, °C: not more than -5, -10, +3, +2. Standard: GB/T1101. Color, Saybolt number: not less than +30, +20, +24. Corrosion test at 100°C for 3 hours: Grade 1. Standard: GB/T364. Moisture content, %: none. Standard: SH/T0136. Mechanical impurities, %: none. Standard: SH/T0405. Water-soluble acids or bases: none. Standard: SH/T0130. Sulfuric acid color test: Pass. Standard: SH/T0134. **Test: Pass. Standard: GB/T260. Appearance: This product is a colorless, odorless, non-fluorescent, transparent oily liquid. Visual inspection