Product leaflet for Tris‑HCl buffer (1 M, pH 7.0‑9.0) from Beijing JinMing Biotechnology, detailing composition, storage, and safety notes.
The Tris‑HCl buffer (1 mol/L, pH 7.0‑9.0) is a weak base solution used as a biological buffer in molecular biology, nucleic‑acid and protein work. It is prepared from imported Tris and de‑ionized water without high‑pressure sterilisation and can be custom‑adjusted within the pH 7.0‑9.0 range.
The solution is supplied in 500 ml bottles at room temperature, has a shelf life of 12 months, and requires standard laboratory safety precautions such as wearing a lab coat and disposable gloves because it can be irritating to skin and mucous membranes. This manual is written in Chinese.
| Molecular formula | C4H11NO3 |
|---|---|
| Molecular weight | 121.14 g·mol⁻¹ |
| pKa (25 °C) | 8.1 |
| Effective buffering range | pH 7.0‑9.2 |
| Concentration | 1 M |
| pH range | 7.0‑9.0 (customizable) |
| Package size | 500 ml bottle, room temperature |
| Shelf life | 12 months |
The buffer works effectively from pH 7.0 to pH 9.2.
Store the 500 ml bottle at room temperature; it remains stable for 12 months.
Yes, it can be irritating to the skin; wear a lab coat and disposable gloves.