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Hot products |
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Pigment Yellow 12 |
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Pigment Yellow 13 |
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Pigment Orange 13 |
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Pigment Violet 3 |
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Pigment Green 7 |
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Pigment Blue 15:3 |
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Pigment Red 22 |
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Pigment Red 48:2 |
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Pigment Yellow 83 |
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Pigment Yellow 34 |
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1-Amino 8-naphthal, 3,6-disulphonic Acid
Structural Formula:
Molecular Formula: C10H8O7NS2Na
Molecular Weight: 341.3
Physical and Chemical Properties:
(1)the solubility in water is 0.17% (20°C);
(2)the solubility in water is 2.40% (60C°C);
(3)insoluble in alcohol and aether;
(4)soluble in solutions of alkali, sodium carbonate and ammonia;
(5)the dilute solutiono f H-acid appears blue red fluorescence;
(6)H-acid can couple in both acid and alkali condition;
(7)a. the alkali solution of H-acid fast becomes dark in air; b. to produce yellow crystalline diazo compound when reacting with nitrous acid; c. diazo compounds are soluble in soda and alkali solution; d. appears light violet when dissolving in soda solution, appears dark green when dissolving in alkali solution.
Main Uses: used to produce all kinds of azo dyes, used to dye wools, textiles, papers and paper textiles; also used to synthesize pharmaceutical.
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2-Amino-5-Naphthol-7-Sulfonic acid  J-ACID
Molecular formula: C10H9NO4S
Molecular weight: 239.25
| Product |
Coupling |
Moisture |
Appearance |
Insoluble |
Isomers |
Y-Acid |
Bis-J-Acid |
Dry
Product |
90% |
≤1% |
Light grey to grey crystals |
≤0.2% |
1.2 |
- |
Dry
Product |
92% |
≤1% |
Light grey to grey crystals |
≤0.2% |
1.2 |
- |
Wet
Product |
≤40% |
- |
Light grey to grey crystals |
≤0.2% |
≤2% |
≤0.5% |
Uses: For manufacturing Bis-J-Acid Urea, Phenyl-J-Acid, Direct dyes and Reactive dyes.
Packing: In 25kg.net woven bag lined with; A 20’ container can contain 14 tons cargo.
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2-Naphthylamine-1-Sulfonic TOBIAS ACID
Structural formula:
Molecular formula: C10H9NO3S
Molecular weight: 223.25
Total diazo
Value |
Moisture |
Appearance |
Insoluble |
2-Naphlhyl-ammine
P.P.M |
97% |
≤1% |
White to pink crystals |
0.05 |
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98% |
≤1% |
White to pink crystals |
0.05 |
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97% |
≤1% |
White to pink crystals |
0.05 |
500 |
98% |
≤1% |
White to pink crystals |
0.05 |
500 |
98% |
≤1% |
White to pink crystals |
0.05 |
200 |
98% |
≤1% |
White to pink crystals |
0.05 |
100 |
98% |
≤1% |
White to pink crystals |
0.05 |
50 |
Uses: For manufacturing J-Acid, Lithol scarlet, Naphthol and Reactive Brilliant Red K10B.
Packing: 25kg.net Woven bag lined with plastic bags; A 20’ container can contain 18 tons cargo.
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Diphenylamine
Molecular formula:(C6H5)2NH
Molecular weight:169.23
Structure formula:
CAS NO. 122-39-4
Quality standard of product:Q/320621EAE01-2004
| Item |
Technical Index |
grade |
1st grade |
Appearance |
White , Light yellow or brown Tablet or particle |
Diphenylamine,% ≥ |
99.50 |
Low boiling point, ≤ |
0.5 |
High boiling point, %≤ |
0.5 |
Aniline, %≤ |
0.1 |
Freezing point,Degree Celsius°C ≤ |
52.60 |
Reaction of water extract substance |
Neutral |
Moisture, %≤ |
0.2 |
Alcohol insoluble substance, %≤ |
0.05 |
Property: white crystal, becoming gray or brownish yellow once exposed to light, Specific gravity: 1.160 (20/20)
Boiling point: 302 , lightly dissolving in water, dissolving in ethanol, diethyl ether, benzene, dissolving in thick inorganic acid solution but separating if diluted by water
Application: diphenylamine is mainly used to synthesize rubber antiager, dye, medicine intermediate, lubricating oil antioxidant, and powder stabilizer.
Package: This product is packed in 25kg paper&plastic composite sack. It should be kept away from sunlight, moisture, and heat. |
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