Alizarin Red S CAS 130-22-3 C. I. 58005 Mordant Red 3

• CAS No.: 130-22-3
• Formula: C14h7nao7s
• EINECS: 204-981-8
• Appearance: Powder
• Classification: S
• Certification: CCIC
• Model NO.: SUREST-86
• Purity: 90%~99%
• Type: Sodium Hydrosulfide
• Grade Standard: Industrial Grade
• Shelf Life: 2 Years
• Stock: Available
• Molecular Weight: 342.25
• Water Solubility: Soluble in Water
• Transport Package: 25kg or 200 Kg/Barrel
• Specification: 98%min
• Trademark: Surest
• Origin: China
• HS Code: 3204120000
• Production Capacity: 1000 Tons Yearly

Product Description

Alizarin Red S

 

Name	Alizarin Red S
Synonyms	C.I. 58005; 9,10-Dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid sodium salt; Mordant Red 3; Sodium alizarinesulfonate
Molecular Structure
Molecular Formula	C14H7NaO7S
Molecular Weight	342.25
CAS Registry Number	130-22-3
EINECS	204-981-8

Chemical Property/Description

Orange-yellow or yellow-brown powder, soluble in water, slightly soluble in ethanol, insoluble in benzene. The pH of 1% aqueous solution is 2.15, and its aqueous solution is light yellowish brown, yellow after adding hydroc acid, and blue purple after adding  hydroxide.



Main Uses:


(1) Determination of fluoride. Acid-base indicator. Alizarin red can form stable red complexions with many metal ions, and is often used as a metal indicator in analysis. Spectrophotometric determination of metal ion color development agent; Often used as a metal indicator in analysis; Spectrophotometric determination of metal ion color development agent; Acid-base indicator, the first color range PH 3.7 (yellow) ~ 5.2 (purple), the second color range PH 10.1 (purple) ~ 12.0 (light yellow); Used for polarographic determination of metal ions.

(2) Used as an acid-base indicator, ph 3.7 (yellow) ~ 5.2 (purple). Used as a chromogenic agent for spectrophotometric determination of fluoride, aluminum, beryllium, germanium, indium and cobalt. It is also used as an indicator for the determination of rhenium, thorium, scandium and other metals.