Castor oil plant

“ We pass small patches of the castor-oil plant, and of a reddish-stemmed bush, bearing the Indian bendigo, Arabic bahima, the fruit a sort of bean in appearance and about as palatable. The castor-oil is much used by the women as a hair-dressing, but they are not fastidious; they use something else if oil is wanting. ”

“ Castor oil is also obtained by the natives by boiling, and it is accordingly excessively rank after long keeping. The castor-oil plant is a perfect weed throughout Ceylon, being one of the few useful shrubs that will flourish in such poor soil without cultivation. ”

“ Equal parts ox-gall, oil of camphor, oil of pennyroyal, extract of gentian, spirits of wine; wash.
Flies.—In Rooms.— (a) A castor-oil plant growing in the room kills many and drives away the rest. (b) A bunch of walnut leaves keeps them out. (c) A large, handsome Japanese lily (Lilium auratum) behaves like the castor-oil plant. (d) Soak blotting-paper in a solution of sugar of lead, and sweeten with molasses. (e) Mix treacle, moist sugar, or honey with 1/12 of orpiment. (f) Boil 1⁄4 oz. of quassia chips in 1 pint water for 10 minutes; strain; add 4 oz. ”

“ Canola meal. See: Cottonseed meal.
Castor pomace is pulp left after castor oil has been squeezed from castor bean seeds. Like other oil seed residues it is very high in nitrogen, rich in other plant nutrients, particularly phosphorus, Castor pomace may be available in the deep South; it makes a fine substitute for animal manure.
Citrus wastes may be available to gardeners living near industrial processors of orange, lemon, and grapefruit. In those regions, dried citrus pulp may also be available in feed stores. Dried orange skins contain about 3 percent phosphorus and 27 percent potassium. ”

“ Vegetable oils are extracted from the ground-nut, the oil-berry and the castor plant. The ground-nut oils are used by the natives for lights, the extract of the oil-berry is used for cooking, while the castor-oils are used as medicine, just as with civilized people. ”

“ American castor oil is imported for the most part from New York and New Orleans, but some comes from our own possessions in North America. In the United States, according to the "American Dispensatory," the cleansed seeds are gently heated in a shallow iron reservoir, to render the oil liquid for easy expression, and then compressed in a powerful screw press, by which a whitish oily liquid is obtained, which is boiled with water in clean iron boilers, and the impurities skimmed off as they rise to the surface. ”

“ The peeled seeds yield about 40 per cent. of oil. [2123]
All the castor oil pressed in Italy is not pressed from Italian seed. By an official return [2124] it appears that in the year 1872-73 there were exported from Bombay to Genoa 1350 cwt. of castor oil seeds, besides 2452 gallons of castor oil. There are no data to show what was exported from the other presidencies of India in that year.
Uses—Castor oil is much valued as a mild and safe purgative; while the commoner qualities are used in soap-making, and in India for burning in lamps. The seeds are not now administered. ”

“ Hence the seeds themselves, or an emulsion prepared with [Pg 570] them, act much more strongly than a corresponding quantity of oil. Castor oil, extracted by absolute alcohol or by bisulphide of carbon, likewise purges much more vehemently than the pressed oil.
The castor oil of commerce has a sp. gr. of about 0·96, usually a pale yellow tint, a viscid consistence, and a very slight yet rather mawkish odour and taste. Exposed to cold, it does not in general entirely solidify until the temperature reaches -18° C. In thin layers it dries up to varnish-like film. ”

“ The chief uses of castor-oil in the arts are, according to the Shoe and Leather Reporter, as a lubricator for coach and carriage axles, in the manufacture of the best shoe-blacking, as a dressing for calf-skins, for treeing boots, as a substitute for neat's-foot oil, and keeping leather soft, mellow, and pliable. Crude castor-oil is used largely in the manufacture of morocco. ”

“ In my opinion says a writer in ‘Autocar’ castor oil can only be used in fixed cylinders with impunity for short distances and then with repeated cleanings between runs, but on rotary engines of the Gnome type cleaning is almost unnecessary. The reason is that one cannot consistently use castor oil over and over again, for the fact is indisputable that it has a far greater tendency than mineral oils to absorb oxygen, and so gradually to increase in body and finally to gum. ”

“ There must be a good supply of water to make distilling successful. If dried too much, there is a loss in leaves falling off, and the yield of oil greatly diminished. The mint-straw, on being dried, is readily eaten by animals in winter. The annual product is about 70,000 pounds, the greater part of it being exported to Europe.
Uses of Castor-Oil in the Arts.—Castor-oil was formerly employed only as a medicinal agent; but now its uses in the arts are manifold, and its manufacture has come to be a considerable industry. ”

“ L. E. D.—The oil, commonly called nut or castor oil, is got by expression, retains somewhat of the mawkishness and acrimony of the nut; but is, in general, a safe and mild laxative in cases where we wish to avoid irritation, as in those of colic, calculus, gonorrhoea, &c. and some likewise use it as a purgative in worm-cases. Half an ounce or an ounce commonly answers with an adult, and a dram or two with an infant. The castor oil which is imported is not so good as the expressed oil from the nut made in this country. The disagreeable taste is from the coats of the seeds ”

“ There is however a peculiarity in castor oil which serves to distinguish it from every other fixed oil, viz. its great solubility in rectified spirit; for instance, f℥iv of alcohol of ·820 will mix uniformly with any proportion of castor oil, whereas it will not dissolve more than fʒj of Linseed Oil; and a still less proportion of the expressed oils of almonds and of olives; when the spirit is diluted, its action on all these oils is equally diminished, so that common spirit of wine has but little power even over castor oil ”

“ Oils for medical purposes, as CASTOR OIL, COD-LIVER OIL &c., must not be subjected to any process beyond mere clarification by subsidence, filtration through Canton flannel or porous paper, or, at the utmost, washing with warm water, as otherwise their active and valuable properties, if not wholly removed, will be considerably lessened. ”

“ When agitated with it, the mixture becomes turbid, but if it be allowed to settle the oil collects by itself upon the surface. This method of washing is often employed to purify oils. Oils are little soluble in alcohol, except at high temperatures. Castor oil is the only one which dissolves in cold alcohol. Ether, however, is an excellent solvent of oils, and is therefore employed to extract them from other bodies in analysis; after which it is withdrawn by distillation.
Fat oils may be exposed to a considerably high temperature, without undergoing much alteration ”

“ Here also no drastic purgative is to be admitted; it would be adding fuel to fire: not a grain of calomel should be used, if the life of the animal is valued. The castor oil mixture will afford the most certain relief, a drop or two of the oil of peppermint being added to it ”

“ Other vegetable oils may be employed besides castor oil, and the quantity of unsaponified oil present may be increased by stirring the prepared liquid with a fresh quantity of castor or other vegetable oil. The product is slightly alkaline, but wool fiber is not injured, as the oiling may be done in the cold. The solution is clear and limpid, and will not separate out on standing like an emulsion. This product in spinning gives a 10 per cent better utilization of the raw material owing to the greater evenness and regularity with which the fibers are oiled; in weaving less oiling is required. ”

“ Ox mills on an inclined plane, and horse mills by draught, are common through the country.
Castor Oil. Considerable quantities of this article have been manufactured in Illinois from the palma christi, or castor bean. One bushel of the beans will make nearly two gallons of the oil. There are five or six castor oil presses in the State, in Madison, Randolph, Edwards, and perhaps in other counties. Mr. Adams of Edwardsville, in 1825, made 500 gallons, which then sold at the rate of two dollars fifty cents per gallon. In 1826, he made 800 gallons ”

“ Production and Commerce—Castor oil is most extensively produced in India, where two varieties of the seeds, the large and the small, are distinguished, the latter being considered to yield the better product. In manufacturing the oil, the seeds are gentry crushed between rollers, and freed by hand from husks and unsound grains. At Calcutta, 100 parts of seed yield on an average 70 parts of cleaned kernels, which by the hydraulic press afford 46 to 51 per cent. ”

“ In most cases, the tænia is expelled in the course of the day, but if this does not occur, the same doses of the oil are given in the same way, and followed by a similar quantity of the castor oil. The fatty oil of fern, has an æthereal and empyreumatic smell; its colour is brown, and its consistence rather greater than that of castor oil; it is, however, easier to separate in drops. ”

“ The sick man is struck with horror at the thought of castor oil—he can never endure it; but he will swallow, without reluctance, one-fiftieth of a grain of elaterin which is ten times more powerful than an ordinary dose of castor oil. ”

“ Several chemists, and in particular Bouillon Lagrange, Laugier, and Hildebrandt have examined castor; and found it to be composed of a resin, a fatty substance, a volatile oil, an extractive matter, benzoic acid, and some salts.
The mode of preparing it is very simple. The sacs are cut off from the castors when they are killed, and are dried to prevent the skin being affected by the weather. In this state, the interior substance is solid, of a dark colour, and a faint smell; it softens with heat, and becomes brittle by cold. ”

“ Very large quantities of gingelly, castor and cocoanut oils are manufactured. The castor oil is generally made in iron mills in regular factories. There are twelve or thirteen of such factories at Cocanada, four or five at Rajahmundry and Peddápuram, and others at Pithápuram, Tuni and Dowlaishweram. Gingelly oil is made in a factory at Tuni; but every- where else both it and cocoanut oil are made in the ordinary wooden mills. ”

“ As the oxen move slowly round and round with the cross-beam, the great pestle grates out harsh music, and grinding the beans against the wooden mortar, expresses the oil. Castor-oil, as well as cocoanut-oil, is here used for burning in lamps. The priest is at work adorning his idol, as we turn into our dwelling to unite with our friends in a morning tribute of praise to the one true God, maker of heaven and earth. ”

“ The oil must be put in a copper vessel with an equal quantity of water. Now boil for 3 hours, then extinguish the fire. When cold draw off the water. Let the mixture settle for a few weeks.
Mineral Oil:
See also Petroleum.
Production of Consistent Mineral Oils.—
Mixing Castor Oil With Mineral Oils.—Castor oil is heated for 6 hours in an autoclave at a temperature of 500° to 575° F., and under a pressure of 4 to 6 atmospheres. ”

“ When once it commences to gum the carbonization becomes more rapid, because the thickened and pitch-like oil acts as an insulating covering on the top of the pistons and of the cylinder, and cannot get away with sufficient rapidity to avoid decomposition and baking to a coke. Therefore if castor oil is to be used on the ordinary stationary cylinder type of engine, it is necessary to wash out the crank chamber and to replace with fresh oil at frequent intervals. ”

“ The best is to dissolve one ounce of castor oil in one quart of 95 alcohol, and add one ounce of tincture of cantharides, two ounces of tincture of catechu, two ounces of lemon juice, two ounces of tincture of cinchona; and to scent it, add oil of cinnamon, or oil of rosemary, or both.
To Make the Hair Soft and Glossy.—Put one ounce of castor oil in one pint of bay rum or alcohol, and color it with a little of the tincture of alkanet root. Apply a little every morning. ”

“ Castor-oil, when good, is of a light amber or straw colour, inclining to a greenish cast. That which has the least smell, taste, and colour, is considered the mildest. The necessity of some attention to these signs may appear, when I state that I once took seven ounces of this oil in successive doses, and do verily believe that I might have continued to this present hour taking, daily, the usual dose furnished from the same quarter, with as little effect, had not my good genius directed me to send for an ounce from Apothecaries’ Hall. ”

“ Fixed Oils may be detected by moistening writing paper with the suspected article and holding it before the fire: if the oil be entirely essential, no stain of grease will remain; as castor oil is more soluble in spirit than the others, it is the one generally selected for this fraudulent purpose, and the addition of alcohol restores the sophisticated oil to its proper degree of consistency. Alcohol is discovered by adding water, which, if it be present, occasions a milkiness, and at the same time, an increase of temperature ”

“ No good reason has been given for the preference for castor-oil, and the troubles which have arisen after using ordinary paint may be explained partly on the very probable assumption that the oil was not genuine linseed, and so did not dry, and partly on the fact that almost entire reliance was placed on the paint for keeping the joint sound. Joints for acetylene, like those for steam and high-pressure water, must be made tight by using well-threaded fittings, so as to secure metallic contact between pipe and socket, &c.; the paint or spun-yarn is only an additional safeguard. ”