Trisodium phosphate dodecahydrate

Trisodium phosphate dodecahydrate is a corrosion inhibitor for iron in 0.1 M NaClO₄, in both aerated and deaerated solutions. Trisodium phosphate dodecahydrate can be used as an excipient, such as pH regulator, buffer. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs^[1][2].

References:
[1]. Armstrong R D, et al. Behaviour of sodium silicate and sodium phosphate (tribasic) as corrosion inhibitors for iron[J]. Journal of applied electrochemistry, 1994, 24: 1244-1248.

[2]. Elder DP, et al. Pharmaceutical excipients - quality, regulatory and biopharmaceutical considerations. Eur J Pharm Sci. 2016 May 25;87:88-99.

Trisodium phosphate dodecahydrate 在含 0.1 M NaClO₄ 的充气或脱气溶液中是铁的腐蚀抑制剂。Trisodium phosphate dodecahydrate 可用作药用辅料，如pH调节剂、缓冲剂。药用辅料或药用助剂，是指制药过程中使用的除药物成分以外的其他化学物质。药用辅料一般是指药物制剂中的非活性成分，能提高药物制剂的稳定性、溶解性和加工性。药用辅料还会影响共同给药药物的吸收、分布、代谢和消除 (ADME) 过程。