The following data may be of use to the pharmacist:
| Degree of Fahr. | |
| 2786 | Cast iron melts (Daniell). |
| 2016 | Gold melts (Daniell). |
| 1996 | Copper melts (Daniell). |
| 1873 | Silver melts (Daniell). |
| 1750 | Brass (containing 25% of zinc) melts (Daniell). |
| 1000 | Iron, bright cherry red (Poillet). |
| 980 | Red heat, visible in daylight (Daniell). |
| 941 | Zinc begins to burn (Daniell). |
| 773 | Zinc melts (Daniell). |
| 644 | Mercury boils (Daniell), 662 (Graham). |
| 640 | Sulphuric acid boils (Marignac), 620 (Graham). |
| 630 | Whale oil boils (Graham). |
| 617 | Pure lead melts (Rudberg). |
| 600 | Linseed oil boils. |
| 518 | Bismuth melts (Gmelin). |
| 442 | Tin melts (Crichton). |
| 380 | Arsenious acid volatilises. |
| 356 | Metallic arsenic sublimes. |
| 315 | Oil of turpentine boils (Kaure). |
| 302 | Etherification ends. |
| 257 | Saturated sol. of sal ammoniac boils (Taylor). |
| 256 | Saturated sol. of acetate of soda boils. |
| 239 | Sulphur melts (Miller), 226 (Fownes). |
| 238 | Saturated sol. of nitre boils. |
| 221 | Saturated sol. of salt boils (Paris Codex). |
| 220 | Saturated sol. of alum, carb. soda, and sulph. zinc, boil. |
| 218 | Saturated sol. of chlorate and prussiate potash, boil. |
| 216 | Saturated sol. of sulph. iron, sulph. copper, nitrate of lead, boil. |
| 214 | Saturated sol. of acetate lead, sulph. and bitartrate potash, boil. |
| 213 or (213·5) | Saturated sol. of water begins to boil in glass. |
| 212 | Water boils in metal, barometer at 30°. |
| 211 | Alloy of 5 bismuth, 3 tin, 2 lead, melts. |
| 201 | Alloy of 8 bismuth, 5 lead, 3 tin, melts (Kane). |
| 207 | Sodium melts (Regnault). |
| 145 | White of egg begins to coagulate. |
| 185 | Nitric acid 1·52 begins to boil. |
| 180 (about) | Starch forms a gelatinous compound with water. |
| 176 | Rectified spirit boils, benzol distils. |
| 173 | Alcohol (sp. gr. ·796 to ·800) boils. |
| 151 | Beeswax melts (Kane), 142 (Lepage). |
| 150 | Pyroxylic spirit boils (Scanlan). |
| 141·8 | Chloroform, and ammonia of ·945, boil. |
| 44·5 | Potassium melts (Bunsen). |
| 132 | Acetone (pyroacetic spirit) boils (Kane). |
| 122 | Mutton suet and styracin melt. |
| 116 | Bisulphuret of carbon boils (Graham). |
| 115 | Pure tallow melts (Lepage), 92 (Thomson). |
| 112 | Spermaceti and stearin of lard melt. |
| 111 | Phosphorus melts (Miller). |
| 98 | Temperature of the blood. |
| 95 | Ether (·720) boils. |
| 95 | Carbolic acid crystals become an oily liquid. |
| 88 | Acetous fermentation ceases, water boils in vacuo. |
| 77 | Vinous ferm. ends, acetous ferm. begins. |
| 64·4 | Oil of anise liquefies. |
| 59 | Gay Lussac’s Alcoomètre graduated at. |
| 55 | Syrups to be kept at (P. L.). |
| 30 (about) | Olive oil becomes partially solid. |
| 32 | Water freezes. |
| ·5 | Cold produced by snow 2 parts and salt 1 part. |
| -37·9 | Mercury freezes. |
TENT. A piece of lint, or compressed sponge, used to dilate openings, wounds, &c.
TERBIUM. A rare metal found by Prof. Mosander, associated with erbium and yttrium in ordinary yttria. See Erbium and Yttrium.
TER′RA. [L.] Earth. Terra japonica, catechu; TERRA PONDEROSA, sulphate of baryta, &c.
TER′RA COT′TA. Literally, baked clay; a term applied to statues, architectural ornaments, &c., made of pure white clay, fine sand, and powdered potsherds, slowly dried, and baked to a strong hardness.
TEST. Syn. Reagent. Any substance employed to determine the name or character of any other substance, or to detect its presence in compounds.
TEST SOLUTIONS. The test solutions here given are those of the British Pharmacopœia, which are used for determining the strength of various Pharmacopœial preparations by volumetric analysis. In the Pharmacopœia it is stated: The processes for volumetric estimations may be performed either with British or with metrical weights and measures, and the solutions are so arranged that they will be of the same strength, and the same indications will be obtained in using them, whichever system is employed, without the necessity of altering any of the figures by which the quantities of the substances tested or of the test solutions required in the process are expressed.
According to the British system, the quantities of the substances to be tested are expressed in grains by weight, whilst the quantities of the test solutions employed in testing are expressed in grain-measures, the grain-measure being the volume of a grain of distilled water.
According to the metrical system, the quantities of the substances to be tested are expressed in grammes by weight, whilst the quantities of the test solutions employed in testing are employed in cubic centimètres, the cubic centimètre being the volume of a gramme of distilled water.