Bác nào có thể cho em biết code của mấy loại hóa chất Merck này không Em đang cần gấp nhưng không biết code
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Potassium hydrogen phthalate Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) CertiPUR® KHC8H4O4.
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di-Sodium oxalate volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) CertiPUR® NA2C2O4.
3.Potassium dichromate volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) CertiPUR® K2CR2O7
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Sodium carbonate volumetric standard, secondary reference material for acidimetry, traceable to NIST Standard Reference Material (SRM) CertiPUR® NA2CO3.
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Sodium chloride volumetric standard, secondary reference material for argentometry, traceable to NIST Standard Reference Material (SRM) CertiPUR® NaCl.
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