Volume 1

Watts' dictionary of chemistry / revised and entirely rewritten by H. Forster Morley and M.M. Pattison Muir ; assisted by eminent contributors.

Date:
1888-1894
Catalogue details

Licence: Public Domain Mark

Credit: Watts' dictionary of chemistry / revised and entirely rewritten by H. Forster Morley and M.M. Pattison Muir ; assisted by eminent contributors. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

    679/796 (page 653)
    forms C.,0H.,.AcO4 (240°-242°). Oil, which with Ac,0 at 200° gives C,()H36Ac.,0| (248°-252°). When saponified by KOH a body G,0H,.,04 (c. 220°) is formed. Compound C,0H44O, (250°-253°). Oil. V.D. (air = 1) 12-9 (Theory 13-7). Compound C,,H.,s03 (227°-229°) at 100 mm. Thick oil. Decomposed when heated under atmospheric pressure. Di-isobutyric di-aldehyde C„H1( 0,. (138°) at 18 mm. V.D. 5-2 (calc. 5-0). This polymeride of isobutyric aldehyde is obtained, together with octenoic aldehyde (?) CsH]40 (150°) by heating isobutyric aldehyde with cone, aqueous NaOAc at 150° (Fossek, M. 2, 622). It is an oil, sol. alco- hol and ether, forming a crystalline compound with NaHS03. Iso-butyric paraldehyde (C,H80)3. [60°]. (195°). V.D. (H = l) 104-8. From iso-butyr- aldehyde by H,S04, HC1, PCI,, CI, Br, or I (Bar- baglia, B. 5, 1052 ; 6, 100-1; G. 16, 430 ; Dem- tschenko, B. 6,1176). Needles (from water or by sublimation). Difficultly attacked by oxidising agents (Urech, B. 12, 1749). Does not combine with NaHS03 or react with NH3. At 150° it par- tially changes to ordinary isobutyric aldehyde. Iso-butyric poly-aldehyde (C,H80)„. S.G-. ^ •969. Prepared by leaving isobutyric aldehyde in contact with dry Na.,C03. Thick liquid. SI. sol. water. Decomposed on distillation, with separation of water and formation of isobutyric aldehyde and condensation products (Urech, B. 12, 191, 1744 ; 13, 483, 590). BUTYRIN v. Glycerin. BUTYR0-CHL0RAL v. Tri-chloro-butyric ALDEHYDE. BUTYRO-C0UMARIC ACID v. Oxy-phenyl- PENTENOIC ACID. BUTYRO-CREATININE v. Methyl-amido- butybic acid. BUTYRO-FURONIC ACID CH.-O- i.e. C02H.CH:CH.CO.CH2.CH.„CH,.CH.;.c6,H (?). [142°]. Prepared by treating furfurvaleric acid with bromine-water and subsequent action of silver oxide. White crystals. Sol. water and alcohol, si. sol. ether. By HI and P it is reduced to azelaic acid (Toennies, B. 12, 1200). BUTYRO-LACTONE v. 7-0xy-butyric acid. BUTYROLIC ACID v. Tetrolic acid. BUTYRONE v. Di-propyl-ketone. BUTYRONITRILE v. Nitrite of Butyric acid. BUTYRO-PINACONE C14H80O2 i.e. CPr.,(OH).CPr.,(OH). Di-oxy-ietradecane. [08°]. (260°). From di-propyl-ketone, water, and Na (Kurtz, A. 161, 215). Crystals, smelling of camphor, si. sol. water. BUTYRO-THIENONE v. Thienyl propyl KETONE. DI-BUTYRYL CsH,,0,. i.e. Pr.CO.CO.Pr. Di-propyl di-kctone. (245°-260°). From butyryl chloride and sodium-amalgam or zinc (Freund, A. 118, 35). Yellow oil. Boiled with potash it forms butyrate of potassium and a liquid C,HI40 which does not unite with NH., or NaHSO.,. Mono-oxim C3H7.C0.C(N0H).C3H7: thick oil; can be distilled in small quantity without decomposition. A di-oxim has not been obtained (Miinchmeyer, B. 19, 1840). BUTYRYL-ACETOPHENONE C(jH..CO.CH,.CO.C3HI. Benzoyl-methyl-propyl- ketone. (174° at 24 mm.). S.G. 1-061 at 15°. Colourless oil. Formed from acetophenone and butyric ether by EtONa (Beyer a. Claisen, B. 20, 2181). Isobutyryl-acetophenone CttH5.CO.CH,,.CO.C3H7. Benzoyl-mcthyl-iso- propyl-ketone. (170° at 26 mm.). Colourless liquid. Formed from acetophenone and iso- butyric ether by EtONa (Beyer a. Claisen, B. 20, 2181). BUTYRYL-AMIDO-BENZOIC ACID PrCO.NH.CuH4.C02H. [209°]. From M-butyrie ether (20 c.c.) and m-aniido-benzoic acid (lO g.) at 180° in sealed tubes (Pellizzari, A. 232, 148). Sol. water and alcohol. BUTYRYL BROMIDE v. Butyric acid. BUTYRYL CHLORIDE v. Butyric acid. BUTYRYL CYAN AMIDE v. Cyanamide. k-BUTYRYL CYANIDE OH.NO i.e. PrCO.CN. (133°-137°). From AgCN and PrCOCl (E. Moritz, C. J. 39, 16). «,-Di-butyryl di-cyanide (PrCO).,(CN),. (c. 234°). By-product in preparation of above. Iso-butyryl cyanide Pr.CO.CN. (117°-120 ). From PrCO.Cl (40 g.) and AgCN (50 g.). Bad yield (E. Moritz, C. J. 39, 13). The greater part of the product is di-iso-butyryl di-cyanide (226°-228°). S.G. -96. BUTYRYL IODIDE v. Butyric acld. BUTYRYL-MALONIC ETHER C3H..CO.CH(CO,Et),. (247°-252°). Formed by the action of butyryl chloride upon sodio-malonic ether. By nitrous acid it is converted into iso- nitroso-butyryl-acetic ether (Lang, B. 20, 1326). BUTYRYL PEROXIDE v. Butyric acid. BUTYRYL-PROPYL-UREA v. Butyryl deri- vative of Propyl-ubea. BUTYRYL SULPHOCYANIDE (180°). From butyryl chloride and lead sulphocyanide. Decom- poses when boiled (Miquel, A. Ch. [5] 11, 295). BUTYRYL-UREA v. Urea. BUXElNE. An alkaloid extracted by dilute oxalic acid from the bark of the box-tree Buxns sempervvrens. Yellowish-white crystalline sub- stance, sol. alcohol and ether, si. sol. water. HNO:! gives a greenish-yellow colouration turn- ing brick-red. H.,S04 gives a blood-red colour. Chromic acid mixture gives an orange pp. (Alessandri, G. 12, 96). It is perhaps identical with buxine. Barbaglia finds four alkaloids in the leaves and twigs of the box: buxine, para- buxine, buxidine, and buxinidine (G. 13, 249 ; B. 17, 2655). BUXINE CISH,,NO:t(?). An alkaloid extracted by dilute oxalic acid from the leaves of the box tree. White crystalline substance, sol. alcohol and ether, si. sol. water. HN03 gives a purple- red colouration. H.SO, gives a brick-red colour. Chromic acid mixture gives a canary-yellow pp. (Alessandri, G. 12, 96 ; Barbaglia, B. 4, 757; Faure, J. Ph. 16, 428; Couerbe, J. Ph. 1854, 51). According to Walz (J. 18(30, 548) buxine is identical with bebeerine (q.v.). Parabuxine C2sHlsN.,0 (?) An alkaloid oc- curring in both leaves and bark of the box tree. It is a reddish-purple amorphous resin, sol. water and alcohol, insol. ether. HN03 gives a permanent greenish-yellow colouration. H;,S04 gives a greenish-yellow colour becoming dark. Chromic acid mixture gives no pp.— BH?S04.—B2HCL—BH,PtCl6 (Pavesi a. Bo- tondi, G. 4, 192 ; Alessandri).