Experimental data on sodium borohydride in pure water and seawater, underlying the publication: Spill Behaviour of Hydrogen Carriers as Alternative Fuels for Ships.

Sodium borohydride (SB) was tested for its reaction with seawater. A pneumatic through is used to measure the hydrogen production from SB when reacting with seawater. The resulting substance from the SB reaction , NaBO2, will dissociate in water, resulting in Na+ and B(OH)₄^--ions. These strongly alkaline ions can result in a strongly alkaline solution. To avoid forming a very strongly alkaline solution, which would mimic the conditions of open seawater, and due to safety limitations in the test setup, a total of 0.15g of SB was added to a large excess of 600mL of water. In the case of complete conversion of all SB, this is predicted to result in a pH of 10.52, regardless of whether salt is added. Experiments involved placing 0.15g of SB in an airtight Erlenmeyer flask filled with seawater. This flask is connected via a tube to a pneumatic trough, allowing us to measure the volume of hydrogen gas generated by the reaction. Temperature conditions were adjusted using a heating plate when necessary.

本研究针对硼氢化钠（Sodium borohydride，SB）与海水的反应开展了实验测试。采用集气槽对硼氢化钠与海水反应产生的氢气产量进行测定。硼氢化钠的反应产物偏硼酸钠（NaBO₂）可在水中解离为钠离子（Na⁺）与四羟基合硼酸根离子（[B(OH)₄]⁻），这类强碱性离子会使溶液呈现强碱性。为避免生成与开阔海水环境偏差过大的强碱性溶液，同时受限于实验装置的安全性能，本次实验向600mL的大量过量水中加入了总计0.15g的硼氢化钠；若所有硼氢化钠完全反应，理论预测无论是否添加盐类，溶液的pH值均为10.52。实验过程为将0.15g硼氢化钠置于装有海水的密闭锥形瓶（Erlenmeyer flask）中，该锥形瓶通过导管与集气槽相连，由此可测定反应生成的氢气体积，必要时可通过加热板调节实验温度条件。