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Alizarin yellow GG CAS 584-42-9 Alizarin Yellow 2G Metachrome Yellow Mordant Yellow 1 

Payment Terms: T/T,L/C,WU 
Place of Origin: Sichuan, China (Mainland) 
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Product Detail

Model No.: C13H8N3NaO5
Production Capacity: 670T/Year
Delivery Date: within 7 days
CAS No.: 584-42-9
Molecular Formula: C13H8N3NaO5
PH indication range: 10.0-12.0
Alias: Alizarin Yellow 2G
Means of Transport: Ocean,Land,Air
Packing: According to customer requi...
Brand Name: MOSINTER
Brand: MOSINTER
Appearance: Yellow powder
Molecular mass: 309.21

Used as a pH indicator, pH 10.0 (bright yellow) ~ 12.0 (brown). Also used as a biological stain. Commonly used 100 ml50%0.1 g soluble in ethanol.

Alizarin yellow GG (CAS: 584-42-9)

 

Item

Index

Appearance

Yellow   powder

PH indication range

10.0-12.0

Performance specification

Appearance description: yellow powder. Soluble in hot water and ethanol, slightly soluble in cold water. Sulfuric acid solution and ethanol solution are golden, encounter a titian, dilute produce lime precipitation, nitric acid a yellow amber colour.

Physical parameters: melting point: > 300 C

Application Description 

Used as a pH indicator, pH 10.0 (bright yellow) ~ 12.0 (brown). Also used as a biological stain. Commonly used 100 ml50%0.1 g soluble in ethanol.

Hazard statements 

Dangerous code: Xi

The level of danger: R36/37/38

Security level: S24/25 to 36-26

Preparation method

Nitroaniline between the diazotization and coupling with sodium salicylate: add nitroaniline between 100 g to 400 ml of hydrochloric acid and 1.5 L water, heat to dissolve after cooling to 0 to 5 ℃, and 540 g saturated solution of sodium nitrite soluble in water. Diazotization always maintain 5-10 ℃, the temperature will diazonium salt after nitriding, slowly add 116 g saturated aqueous solution of sodium salicylate, below 15 ℃ temperature control and strictly control the pH in 6, continue to stir the 4 h, the place for the night, filtering products. Products used for hot water dissolving, activated carbon, and a little sodium hydroxide added, to control the pH 9, filtering, cooling, crystallization is the finished product.

Purpose: commonly used 0.025% solution made up 25% of ethanol, used as the indicator.

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Company Info

MOSINTER GROUP LIMITED [China (Mainland)]

Offline Showroom in USA

Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

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