94-67-7

Basic information

• Product Name: Salicylaldoxime
• Synonyms: LABOTEST-BB LT00000132;2-HYDROXYBENZALDEHYDE OXIME;SALICYLALDEHYDE OXIME;SALICYLALDOXIME;(2-Hydroxyphenylmethylene)azanol;2-hydroxy-benzaldehydoxime;2-Hydroxybenzaldoxime;Benzaldehyde,2-hydroxy-,oxime
• CAS NO: 94-67-7
• Molecular Formula: C₇H₇NO₂
• Molecular Weight: 137.14
• EINECS: 202-353-8
• Product Categories: Aromatic Hydrazides, Hydrazines, Hydrazones and Oximes
• Mol File: 94-67-7.mol
• Article Data: 67

Chemical Properties

• Melting Point: 59-61 °C(lit.)
• Boiling Point: 251.96°C (rough estimate)
• Flash Point: 146.86 °C
• Appearance: Bordeaux to purple-red/Powder
• Density: 1.2528 (rough estimate)
• Vapor Pressure: 0.008mmHg at 25°C
• Refractive Index: 1.5030 (estimate)
• Storage Temp.: 2-8°C
• Solubility: sparingly soluble in water, soluble in ethanol, diethyl ether, acetone, benzene.
• PKA: pK1:1.37(＋1);pK2:9.18;pK3:12.11 (25°C)
• Water Solubility: Slightly soluble in water
• Merck: 14,8327
• BRN: 1859881
• CAS DataBase Reference: Salicylaldoxime(CAS DataBase Reference)
• NIST Chemistry Reference: Salicylaldoxime(94-67-7)
• EPA Substance Registry System: Salicylaldoxime(94-67-7)

Safety Data

• Hazard Codes: Xn,Xi
• Statements: 22-36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• RTECS: VN5775000
• TSCA: Yes
• HazardClass: IRRITANT
• Hazardous Substances Data: 94-67-7(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 94-67-7 differently. You can refer to the following data:
1. Salicylaldoxime is an organic compound described by the formula C6H4CH=NOH-2-OH and it is the oxime of salicylaldehyde. This crystalline, colorless solid is a chelator and sometimes used in the analysis of samples containing transition metal ions, with which it often forms brightly colored coordination complexes.
2. As a reagent for copper and nickel.
3. Salicylaldoxime reacts with several metal ions to give intensively coloured complexes which are insoluble in water. The structure of the copper(II), nickel(II) and palladium(II) complexes is shown in Fig. 14 (structure I), and that of the manganese(II), iron(II), cobalt(II) and zinc(II) complexes in Fig. 14 (structure II). The copper(Il) and palladium(II) salicylaldoxime complexes are of importance from an analytical point of view. The complexes precipitated from aqueous media are easily filterable and washable and are weighed after drying at 100°C. The precipitates are of stoichiometric composition. The outstanding stabilities of the copper(II) and palladium(II) complexes make the reagent suitable for the selective determination of these metal ions. These two complexes form quantitatively at low pH values where the complexes of other metal ions do not exist. Besides the gravimetric method, salicylaldoxime is also useful in the volumetric, amperometric and nephelometric determinations of copper and palladium. Salicylaldoxime gives a black precipitate with VOs~ in media containing sulfuric acid; this is soluble in chloroform to give an orange solution. The reaction is specific for vanadium which can thus be detected by this method in the presence of almost all other metals. In neutral medium salicylaldoxime reacts with iron(III) to give a red complex which is soluble in water. The reaction is utilized for the detection of micro amounts of iron.

Elements Extraction

Salicylaldoxime is recognized as a selective precipitant for copper, although it forms water-insoluble chelates with a number of elements. Ingvar Dahl invested the extraction of divalent magnesium, manganese, cobalt, nickel, copper, zinc, cadmium, mercury, and lead with solutions of salicylaldoxime in benzene and the effect of the reagent concentration and particularly the pH of the aqueous phase on the extractability was also studied. The solubility of salicylaldoxime in organic solvents has been utilized in the solvent extraction of carious elements.

InChI:InChI=1/C7H7NO2/c9-7-4-2-1-3-6(7)5-8-10/h1-5,9-10H/b8-5-

Upstream product

• 30866-43-4 2-Imino-2H-chromene-3-carboxylic acid [1-(2-hydroxy-phenyl)-meth-(E)-ylidene]-hydrazide 
• 80289-35-6 lauroylsalicylaldoxime 
• 61042-20-4 2-hydroxybenzaldehyde methyl oxime 
• 5470-11-1 hydroxylamine hydrochloride 
• 90-02-8 salicylaldehyde 
• 95-48-7 ortho-cresol 
• 14363-30-5 nickel(II)(salicylaldoximate)2 
• 90-01-7 salicylic alcohol 
• 89-95-2 2-methyl-benzyl alcohol 
• 22755-24-4 sodium salt of nitromethane 
• 108-95-2 phenol 
• 50-00-0 formaldehyd 
• 80277-94-7 hexanoylsalicylaldoxime 
• 59417-52-6 2-(acetoxyiminomethyl)phenol 

Downstream Products

• 18406-06-9 2-Trimethylsilyloxy-benzylidenoxim-O-trimethylsilyl-ether 
• 646066-95-7 N-(2'-hydroxybenzyl)hydroxylamine 
• 685136-55-4 cadmium mono(o-hydroxybenzaldoximate) 
• 261356-05-2 Ru(P(C₆H₅)3)2(C₇H₅NO)Cl₂ 
• 172614-32-3 Ru[P(C₆H₅)3]2(HCNOHC₆H₄O)(HCNOC₆H₄O) 
• 41942-15-8 trans-bis(salicylaldoximato)copper(II) 
• 1413932-75-8 N,N-di(2-hydroxybenzyl)formamide 
• 1413932-60-1 N,N-di[2-(allyloxy)benzyl]formamide 
• 1413932-74-7 C₂₀H₂₃NO₂ 

Relevant articles and documents

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