Минеральное масло

Химические свойства

Mineral oil mist is a colorless, oily liquid aerosol dispersed in air with an odor like burned lubricating oil. The odor threshold is 1.0 ppm.

Использование

mineral oil is an emollient cleanser and demulsifier of dirt trapped in pores. Mineral oil is excellent for use in cleansers. In leave-on cosmetics, its comedogenicity or lack thereof appears related to the level of raw material refinement; therefore, some suppliers state that their product is non-comedogenic. When used in leave-on preparations, mineral oil’s occlusive capability is considered to help improve the epidermal barrier function. This is a clear, odorless oil derived from petroleum and is not known to cause allergic reactions.

Показания

Fecal softeners are substances that are not absorbed from the alimentary canal and act by increasing the bulk of the feces and softening the stool so that it is easier to pass. Mineral oil has been in use for many years, either as the oil or as a white emulsion; it is a mixture of liquid hydrocarbons. Its use has been criticized for many reasons. It dissolves the fat-soluble vitamins and prevents their absorption.

Общее описание

Sigma′s Blue-White Select^? Screening Reagent is a chromogenic substrate for β-galactosidase, used to determine the presence or absence of a cloned DNA insert in bacteria growing on agar plates. Blue-White Select^? Screening Reagent is designed for blue-white selection of recombinant bacterial colonies with the lac+ phenotype.

Угроза здоровью

Recommended Personal Protective Equipment: Goggles or face shield; Symptoms Following Exposure: Ingestion of liquid can cause very loose bowel movements; General Treatment for Exposure: EYES: wash with water; Toxicity by Inhalation (Threshold Limit Value): Not pertinent; Short-Term Inhalation Limits: Not pertinent; Toxicity by Ingestion: Grade 1, LD50 = 5 to 15 g/kg; Late Toxicity: None; Vapor (Gas) Irritant Characteristics: None; Liquid or Solid Irritant Characteristics: None; Odor Threshold: Not pertinent.

Химическая реактивность

Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Побочные эффекты

It is itself absorbed slightly and appears in the mesenteric lymph nodes, and if it is inhaled into the lungs (which it may be in elderly or debilitated patients), it may produce inflammatory responses such as lipoid pneumonia. Its continual use, therefore, is contraindicated, although its occasional administration in otherwise well patients is not harmful. It is employed primarily in patients who must avoid straining at stool, including persons with hemorrhoids and other painful anal lesions. Leakage of mineral oil past the anal sphincter may lead to soiling of clothing. Docusate dioctyl sodium sulfosuccinate (Colace),

Профиль безопасности

Highly purified food grades are of low toxicity. Questionable carcinogen. When heated to decomposition it emits acrid smoke and irritating fumes.

Возможный контакт

Mineral oil is used in cosmetics, pharmaceutical bases; food, and fiber production; as carriers and bases; as a lubricating oil and as a solvent for inks in the printing industry. Oil mist would be encountered in quenching of hot metal parts and in metal machining operations.

Несовместимости

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong acids (especially nitric acid), strong bases.

Утилизация отходов

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.