phenolphthalein

1 On titrating with standard acid, it required 15.26 cc. for a change in color, using phenolphthalein, and 17.90 cc. additional, using methyl orange as an indicator.

2 On account of the strong alkaline solution, the original color produced by the phenolphthalein is very faint, but this slowly increases until it becomes deep just before the acid point is reached.

3 It may be employed with some of the stronger organic acids, but the use of phenolphthalein is to be preferred.

4 Examples are litmus and phenolphthalein.

例如石蕊和酚酞。

5 In the following discussion of the principles underlying the behavior of the indicators as a class, methyl orange and phenolphthalein will be taken as types.

6 It is reacted with phenol to produce phenolphthalein, used as an indicator, a dye, and a pharmaceutical.

它与酚反应生产酚酞，可用作指示剂、染料和医药。

7 We will take two jars containing solution of monocarbonate of soda, and in the first we will put some phenolphthalein solution, and in the second, some litmus tincture.

8 Titrate the distillate with N/10 alkali, using phenolphthalein as an indicator.

9 The causes of producing error results were analyzed at detectingalkaline cell seal characteristics , using phenolphthalein solution.

分析了用酚酞试剂检测碱性电池密封性能产生错误结果的原因.

10 From the following data identify them: Sample I. On adding phenolphthalein to a solution of the substance, it gave no color to the solution.

11 In order to increase reliability using phenolphthalein solution to detect alkaline cell sealing characteristics, the water in the alcohol was decreased, environment humidity were requisite.

为了提高酚酞溶液检测碱性电池密封性能的可靠性，就必须减少配制酚酞试剂酒精中的含水量，同时也必须降低测试环境湿度。

12 The solubility parameter of phenolphthalein poly (ether sulfone) (PES-C) was determinated by using turbidity titration method, and estimated by using group contribution method.

采用浊度滴定法测定和基团贡献法估算了酚酞基聚醚砜的溶解度参数。

13 Note:—The potassium oxalate and the formalin must both be neutral to phenolphthalein.

14 Objective To discuss the effect of phenolphthalein in promoting the recovery of intestinal function after hysterectomy.

目的探讨子宫切除术后酚酞在促进肠功能恢复中的作用.

15 It is titrated with 0.30 N hydrochloric acid, using phenolphthalein in cold solution as an indicator and becomes colorless after the addition of 48.16 cc.

16 Objective:To set up a method for the detection of the content of phenolphthalein in phenolphthalein tablets and elimination of the foreign matter fluorane and excipients.

目的：建立测定酚酞片中酚酞含量的方法，消除杂质荧光母素及辅料的干扰。

17 Acid calibration potassium hydroxide, to phenolphthalein as indicator.

二甲酸氢钾标定, 以酚酞为指示剂.

18 Some of the supplements also contain another chemical used previously in over-the-counter laxative products, a dye called phenolphthalein.

19 The transitions of bisphenol A and phenolphthalein oligo -- polysulfones were inves - tigated by DSC.

本工作用示差扫描量热法(DSC)研究了双酚A型和酚 酞 型两种聚砜预聚物的转变.

20 Phenolphthalein diphosphate tetrasodium salt hydrate; CAS…

询价酚酞二磷酸四钠水合物；

1 化学分子式

DDT EDTA GHB BZP salt alcohol formula cholesterol glucose caffeine cocaine heroin nicotine propane ammonia methane serotonin ether dopamine silica alum octane LSD morphine TNT methamphetamine ibuprofen methanol acetone urethane amphetamine choline formaldehyde creatinine urea glutamine warfarin menthol histamine codeine benzene ethylene butane borax retinol paracetamol tryptophan sucrose tyrosine taurine leucine phenol glucosamine styrene glyphosate glycerol capsaicin propylene dioxin ketamine homocysteine arginine xylitol lysine quercetin chloroform methotrexate alumina glycine zirconia camphor diazepam acetylene cysteine melamine ephedrine metronidazole catechin cisplatin naproxen alanine toluene methionine quinine isoflavone ethane bupropion thyroxine purine phenylalanine inositol allicin hexane saccharin acetaldehyde hydroquinone acrylamide atropine fluorescein magnesia betaine serine propranolol aniline colchicine adenine proline sorbitol diphenhydramine chlorhexidine Pyridoxine theobromine noradrenaline vanillin histidine coumarin hydrazine cytosine tetrahydrocannabinol naphthalene guanine mescaline valine isoniazid mannitol indomethacin thymine pyrimidine isopropanol threonine tyramine alizarin butadiene heptachlor zidovudine phosgene allantoin trichloroethylene nitrofurantoin isoprene cetane benzocaine ornithine uracil nitroglycerine benzaldehyde pyridine acetonitrile cyanogen pentane cystine imipramine carbaryl asparagine butanol halothane nitromethane pyrrole heptane rotenone chloral isobutane imidazole phosphine creatine Aldrin chlordane acrylonitrile ethylbenzene nitrobenzene perchloroethylene dopa dieldrin thymol indole phthalocyanine tris benzoin quinoline iodoform pentazocine lithia Amytal nicotinamide hyoscine isoleucine catechol cyclohexane acridine phenothiazine propanol ethylenediamine paraldehyde hyoscyamine apomorphine cresol levamisole lignocaine temazepam phorbol deoxyribose alloxan piperazine sulphanilamide resorcinol tolbutamide diazomethane trichloroethane terbutaline pyrrolidone pyrene eugenol silane benzopyrene sphingosine menadione naphthol cyclopropane disulfiram ethambutol ninhydrin spermine anthracene psoralen hypoxanthine physostigmine stilbene dehydrocholesterol spermidine acetamide santonin litharge papaverine pyrogallol baryta dioxane thiourea furfural haematoxylin frusemide piperidine thiomersal dapsone dichlorvos zineb maneb tetrahydrofuran isooctane iproniazid guanidine dimercaprol tryptamine pirimicarb metaldehyde timolol geraniol furan gossypol caprolactam cementite enflurane chloroprene tacrine squalene pinene cyanamide anthraquinone acesulfame benzoquinone hypericin flavone cannabinol phenanthrene phenylenediamine aldol pyrrolidine muscimol cinchonine ribitol diphenylamine thiazole fuchsin trichlorophenol rosaniline dithizone diborane tropolone cumene triazole barbitone citral decane tetrafluoroethylene thiram azobenzene dihydroxyacetone diquat xanthene muscarine octopamine coniine geranial isobutylene guaiacol acetanilide galactosamine morpholine thoria erythritol biguanide cacodyl purpurin coumarone isatin indene indican orcinol sarcosine creosol tetrazole ketene nonane indigotin strontia phenylthiocarbamide carbazole oxazole salicylic acid nitrogen dioxide cream of tartar white arsenic ascorbic acid quinic acid tartar emetic ammonium carbonate chloric acid hippuric acid glucuronic acid arachidonic acid neuraminic acid nicotinic acid usnic acid uric acid pyruvic acid nalidixic acid ethacrynic acid maleic acid ellagic acid tartaric acid phthalic anhydride caprylic acid picric acid adipic acid isethionic acid phosphoric acid toluidine blue pyrophosphoric acid gallic acid citric acid methacrylic acid caproic acid fumaric acid metaphosphoric acid microcosmic salt ethylene oxide propionic acid valproic acid malonic acid myristic acid lysergic acid

2 酚酞

phthalin

3 酚

phenolic -ol indoxyl phenol