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Methyl Orange IND Grade Reagent

Cas Number:547-58-0
Formula: C14H14N3NaO3S
Molar Mass:327.34
EC Number:208-925-3

Quantity:
  • IND
  • LABOR
  • 402833125

Methyl Orange IND Grade Reagent


Cas Number:547-58-0

Formula: C14H14N3NaO3S

Molar Mass:327.34

EC Number:208-925-3


Properties:

Orange-yellow powder or scaly crystals. One part can be dissolved in 500 parts of water. It is soluble in hot water, the solution is golden yellow, and almost insoluble in ethanol. The maximum absorption wavelength is 505 nm. Poisonous.


Usage:

Acid-base indicator, pH value range of 3.1 (red) ~ 4.4 (yellow), determination of the alkalinity of most mineral acids, strong bases and water. The capacity is determined by tin (Sn 2+ makes the methyl orange fade when hot). A decolorizing indicator for strong reducing agents (Ti 3+, Cr2+) and strong oxidizing agents (chlorine, bromine). Spectrophotometric determination of chlorine, bromine and bromide ions.


Packing:

500g/25kg





Item of Analysis

Standard

pH discoloration domain

3.0(Red)~4.4(Yellow)

Insoluble in water,%

0.15 max

Residue on ignition(as SO4) ,%

18.5~22.0



Symbol 

Signal word 

Danger

Hazard statement

H301

Precautionary statements—Prevention

P264


P270

Precautionary statements—Response

P301+P310+P330

Precautionary statements—Storage

P405

UN No.

3143

Hazard Class

6.1

Package Group

III

Flash point

No Information

Melting point

No Information



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