solubility solubility in 0.18g water: 4 ℃,0.27g;18 ℃, g;20 ℃,0.29g;25 °c, 0.34g;30 °c, 0.42g;40 °c, 0.6g;50 °c, 0.95g;60 °c, 1.2g;75 °c, 2.2g;80 C, 2.75g;90 C, 4.6g;95 C, 6.8g. Application benzoic acid is usually used as a drug or preservative, whic...