| CAS No.: | 77-86-1 |
|---|---|
| Formula: | C4h11no3 |
| EINECS: | 201-064-4 |
|
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| Product Name:Tris(Hydroxymethyl) aminomethane (TRIS) | Molecular Weight: 121.14 | ||
| Batch Number:2020011201 | CAS No.:77-86-1 | ||
| Production Datee: 2020-01-12 | Expiry Date:2022-01-11 | ||
| Specification Properties | Standards | Results | |
| Appearance | White crystalline powder | Conforms | |
| Assay,% | 99.5-101.0 | 99.8 | |
| Melting point,ºC | 168.0-171.0 | 169.3-170.7 | |
| Solubility(40% aq),% | Clear,colorless solution | Conforms | |
| Water Content,% | ≤0.2 | 0.17 | |
| Heavy metal, ppm | ≤5 | Conforms | |
| pH(5% aq) | 10.0-11.5 | 10.7 | |
| Fe,ppm | ≤1.0 | Conforms | |
| SO42- ,ppm | ≤10 | Conforms | |
| Cl-, ppm | ≤3 | Conforms | |
| Ultraviolet Absorbance (280nm) 40%aq |
≤0.07 | 0.06 | |
| Ultraviolet Absorbance (400nm) 40%aq |
≤0.02 | 0.009 | |
| Infrared Spectrum | Conforms to reference | Conforms | |
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