产品规格：5kg 原装
产品货号：U0631
产品原价：￥1150.00
促销价：800.00
所属分类：其他生化***
所属厂家：Sigma
产品说明：
| Product Name | Urea, BioXtra, pH 7.5-9.5 (20 °C, 5 M in H2O) |
| Product Number | U0631 |
| Product Brand | SIGMA |
| CAS Number | 57-13-6 |
| Molecular Weight | 60.06 |
| TEST | SPECIFICATION |
| APPEARANCE | WHITE POWDER |
| SOLUBILITY | CLEAR COLORLESS (5M IN WATER AT 20DEGC) |
| IR SPECTRUM | CONFORMS TO STRUCTURE |
| AMMONIA CONTENT | < OR = 0.05% |
| RESIDUE ON IGNITION | < OR = 0.1% |
| PH TEST | 7.5 TO 9.5 (5M IN WATER AT 20DEGC) |
| CHLORIDE | < OR = 0.05% |
| SULFATE | < OR = 0.05% |
| INSOLUBLE MATTER | < OR = 0.1% |
| ALUMINUM | < OR = 0.0005% |
| CALCIUM | < OR = 0.0005% |
| COPPER | < OR = 0.0005% |
| IRON | < OR = 0.0005% |
| LEAD | < OR = 0.001% |
| MAGNESIUM | < OR = 0.0005% |
| PHOSPHORUS | < OR = 0.005% |
| SODIUM | < OR = 0.005% |
| ZINC | < OR = 0.0005% |
| POTASSIUM | < OR = 0.005% |
| UV-VIS SPECTRUM | < OR = 0.06 AT 260 NM < OR = 0.06 AT 280 NM (C= 6M, IN H2O) |
| ASSAY | 99.0 - 100.5% |
| RECOMMENDED RETEST | 5 YEARS |