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Hydroquinone High quality Hydroquinone 123-31-9
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Product Identification:
CAS No.: 123-31-9
Molecular Formula: C6H6O2
Specification:
Items of Analysis | Specification | Testing Method |
Appearance | White Needle Crystal | In House # PSB01 |
Melting Point(ºC) | 171-175 | GB/T1.1-2009 |
Assay(%) | 99.0-101.0 | In House # PSB10 |
Water(%) | 0.5 max | GB/T1.1-2009 |
Solubility (20ºC)(G/L)(%) | 70 | GB/T1.1-2009 |
Heavy Metal (As PB) (ppm) | 0.005 max | GB/T1.1-2009 |
Incinerate Residue Content(%) | 0.05 max | GB/T1.1-2009 |
Fe(ppm) | 20 max | GB/T1.1-2009 |
Clarity of Solution(1:30) | Clear | GB/T1.1-2009 |
Conclusion | Conform to BP Grade |
Packing:
25kg/bag
Application:
1. Hydroquinone is mainly used as developing agent in photograph
2. Antioxidant for rubber and gasoline, dye intermediate, etc.
3. Polymerization inhibitor for styrene, butadiene, isoprene, vinyl acetate, acrylonitrile and other resin or rubber monomers
4. Polymerization for styrene, acrylic and other vinyl monomers, terminating agent or stabilizer for high-temperature emulsion polymerization reaction
5. Developer in photoengraving
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