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| 1-Naphthol-3,6-disulfonic acid disodium salt |
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| Model No.︰ | 20349-39-7 |
| Brand Name︰ | - |
| Country of Origin︰ | China |
| Unit Price︰ | USD $ 45 / kg |
| Minimum Order︰ | 200 kg |
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1-Naphthol-3,6-disulfonic acid disodium salt
（4-Hydroxynaphthalene-2,7-disulphonic acid disodium salt）
CAS: 20349-39-7
Molecular Formula：C10H6Na2O7S2
Molecular Weight：348.25
Apperance: white to grey paste
Purity (%): > min. 98.3
Coupling Value(%): min. 50.28
1-Naphthol-3,6,8-trisulfonic acid: max. 0.3
1-Naphthol-3,8-disulfonic Acid: max. 0.6
Other Organic impurities(%): max. 0.8
used as Dye and Pigment intermediate
Packaged with paper bucket 25kg.
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| Specifications︰ | 1-Naphthol-3,6-disulfonic acid disodium salt
（4-Hydroxynaphthalene-2,7-disulphonic acid disodium salt）
CAS: 20349-39-7
Molecular Formula：C10H6Na2O7S2
Molecular Weight：348.25
Apperance: white to grey paste
Purity (%): > min. 98.3
Coupling Value(%): min. 50.28
1-Naphthol-3,6,8-trisulfonic acid: max. 0.3
1-Naphthol-3,8-disulfonic Acid: max. 0.6
Other Organic impurities(%): max. 0.8
used as Dye and Pigment intermediate
Packaged with paper bucket 25kg.
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| Payment Details︰ | T/T or L/C |
| Min Order︰ | 200kg |
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