| Specification |
| Product Name |
METHYL ORANGE |
| Synonyms |
Acid Orange 52; Orange III; 4-(Dimethylamino)
azo-benzenesulfonic Acid, Sodium Salt |
| C. I. No. |
13025 |
| CAS NO. |
547-58-0 |
| Molecular Formula |
C14H14N3NaO3S |
| Formula Weight |
327.34 |
| Appearance |
Orange Powder |
| Structure |
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| Tests |
Limits |
| Solubility 0.05% (Dist. Water |
- Soluble in 500 parts water;
More soluble in hot water |
Absorptivity 1%/1cm,
(pH 3.1) at max. 505.0 nm
(pH 4.4) at max. 467.0 nm |
- 1050-1150
- 750-850
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| Loss on drying at 110°C (1hr) |
- < 3%
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| REVISED: 1-1-2012 |
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