2481-94-9
Solvent Yellow 56
CAS: 2481-94-9
Molecular Formula: C16H19N3
2481-94-9 - Names and Identifiers
| Name | Solvent Yellow 56 |
| Synonyms | Solvent Yellow 56 4-DIETHYLAMINOAZOBENZENE 4-(N,N-DIETHYLAMINO)AZOBENZENE 4-PHENYLAZO-N,N-DIETHYLANILINE 4'-(N,N-DIETHYLAMINO)-(1E)-DIPHENYLDIAZENE |
| CAS | 2481-94-9 |
| EINECS | 219-616-8 |
2481-94-9 - Physico-chemical Properties
| Molecular Formula | C16H19N3 |
| Molar Mass | 253.34 |
| Density | 1.0901 (rough estimate) |
| Melting Point | 94-96°C |
| Boling Point | 386.54°C (rough estimate) |
| Storage Condition | 2-8℃ |
| Refractive Index | 1.647 |
| Use | Mainly used for the dyeing of polyester fiber pulp |
2481-94-9 - Risk and Safety
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R68 - Possible risk of irreversible effects |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S60 - This material and its container must be disposed of as hazardous waste. S36/37 - Wear suitable protective clothing and gloves. |
2481-94-9 - Determination of Solvent Yellow 2 and solvent yellow 56 in dried bean curd and Yuba by liquid-liquid extraction/high performance liquid chromatography
from VIP Journal Professional Edition
Author:
Wang Hui , Li Yongqiang , Peng Xinkai , Xia Lixin , Ouyang Li , Zeng Ling yi
Abstract:
A method for the determination of Solvent Yellow 2 and solvent yellow 56 in dried bean curd and Yuba by liquid-liquid extraction/high performance liquid chromatography was established. The sample was extracted with n-hexane saturated with acetonitrile, and then extracted with acetonitrile saturated with n-hexane. The acetonitrile layer was transferred to a concentration flask, and the extraction was repeated for 3 times. The samples were separated on an Agilent TC-C18(4.6 × 250, 5 μm) column with the mobile phase of water-methanol (20:80) at 30 ℃; the flow rate was 1.0 m L/min and the detection wavelength was 410 nm. Solvent Yellow 2 and solvent yellow 56 in the concentration range of 0.30~50 mg/L in a good linear relationship, the detection limit (LOD) and lower limit of quantitation (LOQ) the average recovery of the method was 0.15-0.50, and the relative standard deviation (RSD,n = 6) was 85.4%-94.6%. Both were 0.3% mg/kg and 2.3% mg/kg, respectively. The method has good repeatability and high sensitivity, and is suitable for the determination of Solvent Yellow 2 and solvent yellow 56 in dried bean curd and Yuba.stowed
Key words:
DOI:
10.3969/j.issn.1004-4957.2015.09.017
cited:
year:
2015
Last Update：2024-01-02 23:10:35
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