Product description:
Acid green 20 is dark bluish green to greenish black powder.
Soluble in water, the aqueous solution is dark bluish green, adding concentrated sodium hydroxide solution is purple.
Soluble in ethylene glycol ether, slightly soluble in ethanol, insoluble in other organic solvents.
Product parameter:
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CAS No. |
5850-39-5
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|
EINECS No.
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227-452-3
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C.I. No.
|
20495
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Strength
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100%
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|
Molecular formula
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C22H16N6Na2O7S2
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|
Molecular Weight
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586.508
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Appearance
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Dark bluish green to greenish black powder
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|
Application
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Suitable for dyeing wool, silk and wool blended fabrics. It is also used for direct printing of wool, silk and nylon fabrics
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|
Melting point
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>300℃
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|
Solubility
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Soluble in water, the aqueous solution is dark blue-green, adding concentrated sodium hydroxide solution is purple. Soluble in ethylene glycol ether, slightly soluble in ethanol, insoluble in other organic solvents
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|
LogP
|
7.67280
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|
PSA
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252.87000
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HS code
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3204120000
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Product picture:
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