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                              Printing Ink
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                        Products

                      Products Introduction of  Naphthol AS Series
                      Product
                      CAS NO.
                      Appearance
                      Color Shade
                      Strength
                      Purity≥%
                      Melting point≥οC
                      Alkali insoluble ≤%
                      Bon Acid Content≤%
                      Moisture≤%
                      Naphthol AS
                      92-77-3
                      Beige powder
                      similar
                      100±2%
                      99.0
                      246
                      0.15
                      0.2
                      1.0
                      Naphthol AS-BS
                      135-65-9
                      Yellow powder
                      similar
                      100±2%
                      98.0
                      246
                      0.20
                      0.8
                      1.0
                      Naphthol AS-E
                      92-78-4
                      Light beige powder
                      similar
                      100±2%
                      98.5
                      258
                      0.20
                      0.3
                      1.0
                      Naphthol AS-D
                      135-61-5
                      Beige brown powder
                      similar
                      100±2%
                      98.5
                      193
                      0.30
                      0.2
                      1.0
                      Products Introduction of  Bon Acid
                      Product
                      CAS NO.
                      Appearance
                      Content%
                      Melting pointοC
                      Bata-Naphthol Content%
                      Alkali insoluble %
                      2,6 acid content%
                      1,2 acid content%
                      Moisture %
                      2,3 acid
                      92-70-6
                      Light yellow even powder
                      ≥98.5
                      ≥218
                      ≤0.6
                      ≤0.2
                      ≤0.3
                      Not detected
                      ≤0.3
                      2-Naphthol Introduction
                      Product
                      CAS NO.
                      Appearance
                      Content%
                      Naphtha lene %
                      Melting pointοC
                      α-Naphthol Content%
                      2,2-Joint Naphthol %
                      Moisture%
                      2-Naphthol
                      135-19-3
                      White crystalline powder or flakes
                      ≥99%
                      ≤0.5
                      ≥120
                      ≤0.5
                      ≤0.5
                      ≤0.3