Skip to main content

Table 2 Quantitative TG results of the putty samples

From: Characterizing the sealing materials of the merchant ship Nanhai I of the Southern Song Dynasty

  Weight loss (150–400 °C) Weight loss (400–500 °C)a Weight loss (600–800 °C) Calculated ratio of Ca(OH)2/organics
Sample A (grey layer) 3.7% 6.1% 27.6% 4.3
Sample A (white + black layer) 1.6% 1.8% 15.7% 7.1
Sample B (yellow layer) 3.8% 4.8% 34.8% 6.2
Sample B (white layer) 3.0% 3.8% 35.2% 7.9
Sample C 6.4% 4.0% 20.4% 3.1
  1. aThe range for sample A (white + black layer) is 400–478 °C and that for sample B (yellow layer) is 400–496 °C due to evident weight losses of impurities at around 490–500 °C