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Dyestuff & Pigment

Naphthol AS-SW
Name:

Naphthol AS-SW

No.: DP-038



GENERAL INFORMATION

• CAS NO

92-74-8

• GRADE

Technical Grade

• FORMULA

C17H17O12NCl

• MOLECULAR WEIGHT

297.82

 

PROPERTIES

• Appearance

Light cream or slight red powder

• Solubility

Soluble in o-dichlorobenzene, ethanol, ice acetic acid, insoluble in water, sodium carbonate.

• Stability

Stable under normal temperature

 

SPECIFICATIONS

• Assay

≥99.0%(HPLC)

• Initial melting point

≥256°C

• 2,3 acid

≤ 0.2%

• Alkali insoluble matters

≤ 0.2%

 

APPLICATION

• Mainly used for making organic pigments and also used for dyeing on cotton, viscous textile.

 

PACKING

• 25kg/bag

 

STORAGE AND TRANSPORTATION

• Store in dry and ventilated place, stored and transported as dangerous goods;

• Harmful by inhalation, contacting with skin and swallowing;

• Wear suitable protective clothing and gloves.

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  3. Sodium Pyrophosphate