Name | alpha-Benzoin oxime |
Synonyms | CUPRON CUPRONE alpha-benzoin Benzoin α-oxime BENZOIN A-OXIME α-Benzoin oxime BENZOIN ANTI-OXIME alpha-Benzoin oxime BENZOIN-ALPHA-OXIME BENZOIN ALPHA-MONOXIME a-Benzoin oxime, (Cupron) 2-hydroxy-1,2-diphenyl-ethanonoxime (1E)-2-hydroxy-1,2-diphenylethanone oxime (1Z)-2-hydroxy-1,2-diphenylethanone oxime (1E,2S)-2-hydroxy-1,2-diphenylethanone oxime (1Z,2R)-2-hydroxy-1,2-diphenylethanone oxime (1Z,2S)-2-hydroxy-1,2-diphenylethanone oxime 2-Hydroxy-1,2-diphenylethanone oxime (alpha-form) |
CAS | 441-38-3 |
EINECS | 207-127-2 |
InChI | InChI=1/C14H13NO2/c16-14(12-9-5-2-6-10-12)13(15-17)11-7-3-1-4-8-11/h1-10,14,16-17H/b15-13-/t14-/m1/s1 |
Molecular Formula | C14H13NO2 |
Molar Mass | 227.26 |
Density | 1.13 |
Melting Point | 153-155°C(lit.) |
Boling Point | 368.97°C (rough estimate) |
Flash Point | 270.4°C |
Water Solubility | Slightly soluble in water |
Solubility | ethanol: 0.1g/mL, clear |
Vapor Presure | 9.98E-08mmHg at 25°C |
Vapor Density | 7.9 (vs air) |
Appearance | Crystalline Powder |
Color | White to almost white |
Odor | Odorless |
Merck | 14,1094 |
BRN | 2051941 |
pKa | 10.92±0.40(Predicted) |
Storage Condition | Store below +30°C. |
Stability | Stable, but may be light sensitive. Incompatible with strong oxidizing agents. |
Sensitive | Light Sensitive |
Refractive Index | 1.5780 (estimate) |
MDL | MFCD00004501 |
Physical and Chemical Properties | White crystalline powder. Melting Point 151-152 °c. Soluble in ethanol and ammonium hydroxide solution, slightly soluble in water. It turned from white to black when exposed to light. |
Use | Used as a reagent for the determination of copper and molybdenum |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
RTECS | DI1750000 |
FLUKA BRAND F CODES | 8 |
TSCA | Yes |
HS Code | 29280000 |
Toxicity | LD orl-rat: >500 mg/kg NCNSA6 5,9,53 |
white crystalline powder. The melting point was 151-152 °c. Soluble in ethanol and ammonium hydroxide solution, slightly soluble in water. It turned from white to black when exposed to light. The color gradually darkened after light exposure.
from the role of benzoin and hydroxylamine.
It is used for the detection and determination of copper, molybdenum and tungsten, and is also used as a chelating agent for the extraction of tantalum, vanadium, tungsten, etc. This product can form insoluble precipitation with copper, molybdenum and tungsten ions, and can be used as a precipitant for gravimetric determination or dissolved in organic solvent for extraction and separation. It can also be used for spectrophotometric determination of Pd II ) , Pt( yl) , Rh( III).
median lethal dose (mice, abdominal cavity) 150mg/kg.
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | used for the inspection and determination of copper, molybdenum and tungsten, and also used as a chelating agent for the extraction of tantalum, vanadium, tungsten, etc. used as a reagent for the determination of copper and molybdenum this product can form insoluble precipitates with copper, molybdenum and tungsten ions, and is used as a precipitant for gravimetric determination or soluble in organic solvents for extraction and separation. It can also be used for spectrophotometric determination of Pd(II), Pt(VI), Rh(III), physiological research and determination of trace metal elements |
Production method | is obtained by the action of benzoin and hydroxylamine. |
category | toxic substances |
toxicity classification | highly toxic |
acute toxicity | oral-rat LD: > 500 mg/kg; Abdominal cavity-mouse LD50: 150 mg/kg |
stimulation data | eyes-rabbit 500 mg/24 hours mild |
flammability hazard characteristics | combustible; combustion produces toxic nitrogen oxide smoke |
storage and transportation characteristics | ventilation and low temperature drying; separate from warehouse food raw materials |
fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |