乙酸鈉（NaAc）又稱醋酸鈉。固體為無色透明結晶或白色顆粒。常溫下為三水化合物，120度時失去結晶水，相對密度為：1.45（三水化合物）。分子量為136.08（三水化合物）；

本產(chǎn)品為3M的乙酸鈉溶液，pH為5.2。

配制方法：

3 M 乙酸鈉（pH=5.2）的配制：在800ml水中溶解408.1g三水乙酸鈉，用冰醋酸調節(jié)pH值至5.2，加水定容至1L，分裝后高壓。

用途：乙酸鈉可用于測定鉛、銅、鎳和鐵等，也是一種常用的緩沖劑。在核酸提取中，加入乙酸鈉緩沖液，可調節(jié)鹽離子的濃度，中和核酸分子的負電荷，便于加入乙醇后使DNA沉淀下來。

Sodium acetate buffer solution as the conjugate base of acetic acid, a solution of sodium acetate and acetic acid can act as a buffer to keep a relatively constant pH level. This is useful especially in biochemical applications where reactions are pH-dependent in a mildly acidic range (pH 4-6).

Sodium acetate buffer solution is suitable for precipitation of DNA, elution of proteins and for use in molecular biology applications such as ChIP-on-ChIP assay and in vitro enzyme inhibition assay.