Flowers of tin

Stannic Oxide (White Tin Oxide, Tin Dioxide, Stannic Anhydride, Flowers of Tin Stannic Acid, Cassiterite). Sn02, mw 150.69, white powd, mp 1127°, bp 1800-1900° (subl), d 6.95 g/cc. Sol in coned sulfuric and coned hydrochloric acids, si sol in hot coned aq KOH or NaOH. Prepn is by reacting Sn with coned nitric acid (d 1.41 g/cc) on a w bath forming 0-stannic acid. The 0-stannic acid is then heated to a red heat and converted to Sn02. It is used as a chemical reagent and (see above) as an antifouling, flash and barrel wear reducing additive in propints... 

Synonyms stannic oxide tin dioxide tin peroxide white tin oxide stannic anhydride flowers of tin... 

IGNITE A SULFUR CANDLE [OR A TINY HEAP OF FLOWERS OF SULFUR) ON A PIECE OF TIN. HOLD MOISTENED BLUE LITMUS PAPER OVER FLAME. SULFUROUS ACID FORMED TURNS IT RED. 

Fourteen grams of finely granulated tin (20-30 mesh) are warmed gently with 6.5g of mercury in a porcelain basin under the hood. The mass is stirred with a glass rod until it is homogeneous and quickly poured into a mortar where it is ground to a fine powder as it cools. The cold pulverized amalgam is then intimately mixed with 8g of flowers of sulfur and 6.8g of ammonium chloride. The entire mixture is transferred to a loosely covered crucible which is embedded in a sand bath up to the level of the reaction mixture. The crucible is heated at 400°C in the... 

Saltpetre, 18 parts sulphur, 10 parts block sulphnret of antimony, 3 parts nurnt lime, 4 parts. The sulphur is used in the form of flowers previously dried tho limo is not to be Blocked, but must be finely powdered it must be fresb, and be powdered immediately before use. All other mixtures for white fires have either a bluish tinge or con tain deleterious ingredients, which render them at least unsuitable for indoor use. Of tho latter class we will mention only one Saltpetre, 12 parts sulphur. 4 parts sulphite of tin, 1 part. Two other mixtures deserve mention, though not eaual to tho last ... 

SPIRITUS — A Solvent Water produced from a simple and acrid substance, having the nature of a fiery breath, which is the chief part, though it is combined with a gaseous substance. It acquires an aqueous consistence, and possesses a specific virtue. The spirit fluctuates between an aqueous and oleaginous state, and is nearer to the aqueous. In the case of minerals especially, it is sometimes called an Oil. Some spirits are more oleaginous, some more aqueous than others. Their exhalations are also called Spirits, as, e.g.. Metallic Smoke, Antimony, Tin, Flower of Salt, Wine, etc. 

Take one pound of quicksilver and seven pounds of tin, and place them in pot ig o). Heat them, and bring them to a boil three times. Pour one scruple of Flower of the Nine Cycles onto the liquid tin, and stir. In one instant... 

Place 3 drachms oPmuriate of tin in 3 ounces of ater contained in a small bott-le add 10 or 12 drops of nitric acid, and shake well till fiiiJtT dissolved. Suspend a piece of zinc in the centre as in tn previous experiment, and a similar result will ensue. In. both cases, if the zinc is roughly cut, and given a spiral or leaf-like form, the tree or flower-like eftect is much enli ced. 

Tin(IV) sulphide is prepared commercially as yellow platelets (density 4 51) by the action of tin foil upon flowers of sulphur, and is used as mosaic gold and may be purified by sublimation. It is precipitated from mildly acid solutions of tin(IV) salts by sulphide ion. 

Surface topology and spatial constraints determine the stem cell fate as well. Although protein patterns are not in the realm of microfluidics yet, it is worthwhile to contemplate that the stem cell s fate is influenced by its constrictions. By patterning fibronec-tin on a surface in a defined shape it is possible to influence cell differentiation. MSC were placed on two shapes, a star and a flower shape. The star shape resulted in more... 

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