Precautions mineral oils

Table 5.46 General precautions with mineral oils...

The dry tosylhydrazone (20 g, 45.5 mmol) is dissolved in 750 ml of 1,2-dimethoxyethane (freshly distilled from lithium aluminum hydride) in a flame-dried 1 liter round bottom flask fitted with a 240 ml addition funnel, a drierite tube and a magnetic stirrer. A 2.05 M ether solution of methyllithium (130 ml, Alfa Inorganics, Inc.—Caution to avoid the mineral oil impurity the methyllithium solution is decanted from a cold solution which contains a precipitate) is placed in the dropping funnel and added over a 60 min period. The temperature of the reaction mixture increases to ca. 35° during the addition however, no cooling precautions are required. The highly colored reaction mixture is stirred for 7 hr and then poured into 1.5 liters of ice water. The flocculent precipitate is digested for 12 hr at room temperature to speed the filtration. After filtration the filter cake is washed with 500 ml water and dried under vacuum at 50° for several hr. The androsta-5,16-dien-3l5-ol is obtained in ca. 70% yield after recrystallization from methanol mp 138-139°. 

Precautions (Cont d) mineral oils, 159, 166 mixtures of chemicals, 170, 171 monomer storage, 249 oxides of nitrogen, 154 oxidizing agents, 235 oxygen, 260, 302 painting, 164, 167... 

E. I. du Pont de Nemours and Co., Gibbstown, New Jersey, under the tradename EXR-101. The 30% white mineral oil acts as a stabilizer. The material may be stored indefinitely at room temperature. Details concerning the properties of the compound and recommended precautions in its use are provided in a products bulletin available from the supplier. EXR-101 sometimes turns green on long standing, but this does not affect the yield of diazomethane (private communication from Dr. . C. McKusick). 

Potassium hydride is more basic and more reactive than sodium hydride. It is available commercially as a 35 per cent dispersion in mineral oil. The precautions described above for the handling of sodium hydride must also be adopted with potassium hydride, but because of its greater reactivity greater... 

Observe precautions appropriate to the circumstances and quantity of material handled. Avoid inhalation of vapors and wear protective clothing to prevent skin contact. Mineral oil is combustible. 

Observe normal precautions appropriate to the circumstances and quantity of material handled. Since light mineral oil is combustible, it should not be handled or stored near heat, sparks, or flame. Light mineral oil should not be mixed with or stored with strong oxidants. Inhalation of mineral oil vapors may be harmful. 

Potassium hydride, 1,935 2, 346 4, 409 5, 557. Suppliers Pressure Chem. Co., Pittsburgh, Pa., and Alfa Inorganics supply dispersions of KH in mineral oil (20-35% by weight). Caution Potassium hydride should be handled with the same precautions as sodium hydride. In the absence of the protective oil, it should be protected from oxygen and moisture. 

Handling, Storage, and Precautions the dispersion is a solid and may be handled in the air. The mineral oil may he removed from the dispersion by stirring with pentane, then allowing the hydride to settle. The pentane/mineral oil supernatant may he pipetted off, but care should be exercised to quench carefully any hydride in the supernatant with a small amount of an alcohol before disposal. The dry powder should only be handled in an inert atmosphere. 

Precaution Combustible Hazardous Decomp. Prods. Heated to decomp., emits toxic fumes of NOx Uses Rubber antioxidant, lubricant, inhibitor (butadiene) antioxidant for lubricants in food-pkg. adhesives antioxidant in dry rosin size in mfg. of paper/paperboard in contact with aq./fatty foods antioxidant in food-contact rubber articles for repeated use antioxidant in mineral oil lubricants for incidental food-contact use... 

Properties SI. hazy liq. Hazen color 100 sol. in ethyl alcohol water, wh. spirit, xylene disp. in kerosene, mineral oil, veg. oil dens. 1060 kg/m pour pt. -7 C flash pt. 168 C pH (10% aq.) 2.5 max. acid value 52-63 Precaution Wear gloves, safety goggles homogenize before use Empicol 0585/A [Huntsman Perf. Prods.]... 

Precaution Wear gloves, goggles Incompat. with oxidizers NFPA Health 0, Flammability 0, Reactivity 0 Storage Store in sealed container away from heat, light Jeelan M-16 [Jeen Int l.j Chem. Descrip. Mineral oil, lanolin alcohol CAS 8020-83-5 8012-95-1 8042-47-5 8027-33-6 Uses Emulsifier, stabilizer, emollient, moisturizer, absorption base for creams/ lotions, liq. makeup, general purpose cosmetics Properties Yel to straw colored liq. typical odor insol. in water dens. 0.86 b.p. > 400F... 

Properties Amber llq. Gardner color 5-8 sol. in isopropyl alcohol, water Insol In kerosene, mineral oil dens. 1040 kg/m pour pt. 10-12 C Hash pt. (Seta) > 100 C pH (1% In water) 8.5-10.5 surface tens. 39.5 mN/m (Du Nouy, 0.1%) Precaution Wear mbber gloves, chemical splash goggles avoid eye, skin contact Wrtcamine i4130LP [Akzo Nobel Surf. Chem.)... 

Furfuryl alcohol is comparable to kerosene or No. 1 fuel oil in flammabiUty, the Tag Closed Cup flash point is 170°F. In the presence of concentrated mineral acids or strong organic acids, furfuryl alcohol reacts with explosive violence. Therefore, precautions should be taken to avoid contact of such materials with the alcohol. Caution is also recommended to avoid over-catalysis in the manufacture of furfuryl alcohol resins. 

A mineral was being leached by heating with 7 M nitric acid in a PTFE-lined bomb heated by immersion in a silicone oil bath, and at 195°C a violent explosion occurred. This was attributed to prior leakage of oil into the pressure vessel, which had been immersed in the oil at 120°C, then allowed to cool, before being heated to the higher temperature. Appropriate precautions are recommended. 

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