4B Acid
CAS:88-44-8
Chemical Name:4-Aminotoluene-3-Sulfonic Acid
Molecular Formula:CH3C6H3NH2(SO3H)
Structural Formula:
Usage:Intermediates used for Red 57# Pigment industry and organic composite industry.
Quality Index:
| Index Name |
Index |
| Appearance |
White or cream yellow powder
crystals |
Freneh gray or off-white
powder |
| Purity Total Amines |
≥99.00% |
≥98.00% |
| Insoluble in Ammonia Liquor |
≤0.30% |
≤0.50% |
| Moisture |
≤0.50% |
≤1.00% |
| P.T. |
≤0.30% |
≤0.50% |
Physical Properties:White or cream yellow powdery crystal.Soluble in diluted alkaline solution,ethyl alcohol and ether,insouble in cold water,benzol,and chorobenzene.Lightly soluble in hot water.
Chemical Properties:It has the general characteristic of amines,can diazotizate with nitrite in dilute acid.
Package:Plastic woven bags with PE line or paper bag with PE liner,Net weight 25kgs-500kgs/bag.
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