H₂S Loss through Nalophan™ Bags: Contributions of Adsorption and Diffusion

Table 3

Experimental data relevant to the H₂S loss over time in a Nalophan bag stored at temperature of 23°C and humidity of 20% and 60%. The bag tested was without any film inside (B-no film) and with the film inside. The surface of the internal film sheet was equal to 1900 cm² (B-film 1900), 2580 cm² (B-film 2580), and 3520 cm² (B-film 3520), respectively. The data reported are the average of the results from three different tests performed at the same conditions.

	Time [hr]	23°C RH% 20		23°C RH% 60
			% H2S losses		% H2S losses
B-no film	3	0.92 ± 0.04	8%  ± 4%	0.96 ± 0.02	4%  ± 2%
	24	0.77 ± 0.02	23%  ± 2%	0.80 ± 0.004	20%  ± 0.4%
	30	0.67 ± 0.03	33%  ± 3%	0.78 ± 0.011	22%  ± 1.1
B-film 1900	3	0.89 ± 0.01	11%  ± 1%	0.94 ± 0.02	6%  ± 2%
	24	0.65 ± 0.01	35%  ± 1%	0.60 ± 0.045	40%  ± 4.5%
	30	0.53 ± 0.03	47%  ± 3%	0.54 ± 0.051	46%  ± 5.1%
B-film 2580	3	0.89 ± 0.02	11%  ± 2%	0.87 ± 0.02	13%  ± 2%
	24	0.54 ± 0.01	46%  ± 1%	0.53 ± 0.015	47%  ± 1.5%
	30	0.39 ± 0.002	61%  ± 0.2%	0.47 ± 0.016	53%  ± 1.6%
B-film 3520	3	0.84 ± 0.04	16%  ± 4%	0.86 ± 0.02	14%  ± 2%
	24	0.53 ± 0.03	47%  ± 3%	0.44 ± 0.017	56%  ± 1.7%
	30	0.28 ± 0.01	71%  ± 1%	0.37 ± 0.020	63%  ± 2%