Display device, photoresist, nanoparticles, sensors, image-recoring materials, photoconductive materials, photography, electrorheological materials, copying materials, optical engineering applications, monitoring oil degradation, lubricant, flame luminosity enhancing agent, coloring zinc, method for polymerization of vinyl chloride, determination of OH groups on resins, cosmetics, diapers, food storage, measurement of acidity injuice, assay for aldehyde contents, determination of albumin, agent for plaque, method for counting leukocytes, antifungal agent.

Function:
1.Use acid and alkali indicator, pH 10.0 (yellow) ~ 12.0 (red). Metal colorants. Commonly used 1% sodium salt as an indicator.
2.Use Acid and alkali indicator, pH range 10.2 (yellow) ~ 12.0 (red)