Effect of Magnesium Borates on the Fire-Retarding Properties of Zinc Borates

Table 5

B₂O₃ contents (%) of the synthesised magnesium borate minerals and zinc borate compounds.

Reaction temperature (°C)	Reaction time (minutes) for		B2O3 contents (%) of
	Magnesium borate	Zinc borate	Magnesium borate	Zinc borate
60	30	60	45.34 ± 0.26	43.64 ± 1.93
	60	120	54.34 ± 1.61	40.29 ± 1.79
	90	180	51.39 ± 1.61	48.77 ± 0.51
	120	240	50.34 ± 1.78	44.08 ± 1.53
70	30	60	40.46 ± 1.02	39.42 ± 1.38
	60	120	42.99 ± 0.53	39.51 ± 0.77
	90	180	47.33 ± 1.53	46.80 ± 0.81
	120	240	45.82 ± 1.78	41.80 ± 1.66
80	30	60	48.34 ± 0.41	41.60 ± 0.73
	60	120	42.09 ± 0.77	47.15 ± 0.97
	90	180	40.73 ± 1.92	40.26 ± 0.36
	120	240	41.48 ± 1.63	40.33 ± 1.88
90	30	60	41.91 ± 1.99	46.88 ± 1.92
	60	120	42.41 ± 1.43	45.85 ± 1.25
	90	180	48.74 ± 1.69	50.18 ± 0.16
	120	240	46.06 ± 0.66	52.55 ± 1.98
100	30	60	46.41 ± 0.36	44.26 ± 1.01
	60	120	48.97 ± 0.34	47.41 ± 0.93
	90	180	48.12 ± 0.76	52.87 ± 1.78
	120	240	48.51 ± 0.81	54.79 ± 0.36