Molecular Formula | C20H15N2NaO10S3 |
Molar Mass | 562.51 |
Density | 1.772[at 20℃] |
Melting Point | >300oC |
Water Solubility | 305.21g/L at 20℃ |
Solubility | Soluble in water, soluble in glycerin, slightly soluble in ethanol, insoluble in grease. |
Vapor Presure | 0Pa at 25℃ |
Appearance | Red to crimson powder |
Color | Bordeaux to brown |
BRN | 4122340 |
Storage Condition | Inert atmosphere,Room Temperature |
Stability | Hygroscopic |
MDL | MFCD00004084 |
Physical and Chemical Properties | Red to deep red powder, the aqueous solution is red, odorless. Soluble in water, soluble in glycerol, ethanol-soluble, insoluble in oil. Light resistance, acid resistance is good, citric acid, tartaric acid stability, resistance to bacteria is poor, heat resistance, resistance to reduction is quite poor. It turned brown in alkaline solution. Maximum absorption wavelength (508±2)nm. Rat oral LD50 is greater than 8000mg/kg, mice oral LD5019300mg/kg, ADI 0-4mg/kg(FAO/WHO,1994). Carmine aluminum Lake is Red fine powder, odorless. Light resistance, heat resistance than Carmine good, insoluble in water and organic solvents. |
Use | Used as food colorant, Drug and Cosmetic colorant |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 2 |
RTECS | QJ6530000 |
HS Code | 32041200 |
Toxicity | LD50 oral in rat: > 8gm/kg |
Raw Materials | Hydrochloric acid |
Reference Show more | 1. Wu, Ming, et al. "Detection of Sudan dyes based on inner-filter effect with reusable conjugated polymer fibrous membranes." ACS applied materials & interfaces 10.9 (2018): 8287-8295.https://doi.org/10.1021/acsami.8b00164 2. [IF=9.229] Ming Wu et al."Detection of Sudan Dyes Based on Inner-Filter Effect with Reusable Conjugated Polymer Fibrous Membranes."Acs Appl Mater Inter. 2018;10(9):8287–8295 |
red uniform powder. Soluble in water, red, slightly soluble in alcohol, insoluble in other organic solvents. The solution of concentrated sulfuric acid was purple, and the solution of concentrated nitric acid was yellow. The solution of concentrated hydrochloric acid was red, and the solution of sodium hydroxide was brown.
by 1, 4-aminonaphthalene sodium sulfonate aqueous solution and hydrochloric acid reaction precipitation 1-Naphthylamine -4-sulfonic acid crystal, its diazotization, and then with G sodium aqueous solution coupling, after separation, dry.
for food coloring. Also used for wool, silk, nylon, leather, paper, plastic, wood, medicine and cosmetics dyeing.