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| Product Name | Tris Base White Crystalline Buffer Raw Material ≥99% Purity 20 kg and 25 kg Drums |
| Catalog No. | ATR-B-YJL-0281 |
| Description | Tris, also called tris(hydroxymethyl)aminomethane, is a weakly basic biological buffer supplied as white crystalline powder. It dissolves in water and ethanol, dissolves more slowly in ethyl acetate, and is insoluble in ether and carbon tetrachloride. Tris can corrode copper and aluminum. At temperatures below 25°C, its pKa is 8.1 and its effective buffering range is pH 7.0-9.2. |
| Intended Use | For pH adjustment and preparation of biological buffer systems, including TE and TAE formulations. |
| Storage Conditions | Not stated for this product entry. |
| Package Specifications | 20 kg per drum; 25 kg per drum |
| Product Form | Crystalline powder |
| Key Features | Weak-base buffer with a stated effective pH range of 7.0-9.2. |
| Purity | ≥99% |
| pH Range / Optimal pH | Effective buffering range pH 7.0-9.2; aqueous Tris solution is described as approximately pH 10.5 before adjustment. |
| Recommended Buffer System | Hydrochloric acid is typically used to adjust Tris to the required pH. Tris-HCl with EDTA forms TE buffer; replacing the pH-adjusting acid with acetic acid gives TAE buffer. |
| Application Notes / Precautions | Tris pKa is temperature-dependent. The material is described as corrosive to copper and aluminum. |
| Appearance | White crystalline powder |
| Solubility | Soluble in water and ethanol; slowly soluble in ethyl acetate; insoluble in ether and carbon tetrachloride. |
| Chemical Name | Tris(hydroxymethyl)aminomethane |
| CAS Number | 77-86-1 |
| Other Name | Tris |
| pKa | 8.1 below 25°C |
| Safety | Corrosive to copper and aluminum. |
For research use only, not for clinical use.
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