Benzohydroxamic acid
Benzohydroxamic acid
CAS: 495-18-1
Molecular Formula: C7H7NO2
Benzohydroxamic acid - Names and Identifiers
| Name | Benzohydroxamic acid |
| Synonyms | benzohydroxamate n-hydroxy-benzamid N-HYDROXYBENZAMIDE N-hydroxybenzamide BENZHYDROXAMIC ACID Benzhydroxamic acid BENZOHYDROXAMIC ACID Benzohydroxamic acid Benzamide,N-hydroxy- Hydroxybenzamide, n- Phenylhydroxamic acid N-BENZOYLHYDROXYLAMINE N-Benzoylhydroxylamine |
| CAS | 495-18-1 |
| EINECS | 207-797-6 |
| InChI | InChI=1/C7H7NO2/c9-7(8-10)6-4-2-1-3-5-6/h1-5,10H,(H,8,9) |
| InChIKey | VDEUYMSGMPQMIK-UHFFFAOYSA-N |
Benzohydroxamic acid - Physico-chemical Properties
| Molecular Formula | C7H7NO2 |
| Molar Mass | 137.14 |
| Density | 1.2528 (rough estimate) |
| Melting Point | 126-130°C(lit.) |
| Boling Point | 251.96°C (rough estimate) |
| Water Solubility | 22 g/L (6 ºC) |
| Solubility | Soluble in alcohol. Slightly soluble in ether. Insoluble in benzene. |
| Appearance | Solid |
| Color | Rhombic tablets |
| BRN | 1907585 |
| pKa | pK1: 8.89(0) (20°C) |
| Storage Condition | 2-8°C |
| Stability | Moisture and Temperature Sensitive |
| Refractive Index | 1.5030 (estimate) |
| MDL | MFCD00002109 |
| Physical and Chemical Properties | Melting point 126-130°C water-soluble 22g/L (6°C) |
Benzohydroxamic acid - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R68 - Possible risk of irreversible effects R40 - Limited evidence of a carcinogenic effect R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S36 - Wear suitable protective clothing. S22 - Do not breathe dust. |
| WGK Germany | 3 |
| RTECS | DF9650000 |
| TSCA | Yes |
| HS Code | 29280090 |
| Toxicity | LD orl-rat: >500 mg/kg NCNSA6 5,26,53 |
Benzohydroxamic acid - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Use | Reagents for the determination of iron, vanadium and uranium. |
| Production method | It is obtained by the reaction of ethyl benzoate and hydroxylamine hydrochloride. |
| category | toxic substances |
| acute toxicity | oral-rat LD50:> 500 mg/kg |
| flammability hazard characteristics | combustible; combustion produces toxic nitrogen oxide smoke |
| storage and transportation characteristics | ventilation and low temperature drying |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |
Last Update：2024-04-22 12:07:47
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