产品说明
一般描述
Potassium carbonate is an inorganic base. It participates as a base in the palladacycle catalyzed Heck reaction of chlorobenzene with styrene.
其他说明
通过熔融作用分解硅酸盐的试剂
基本信息
| 线性分子式 | K2CO3 |
| 分子量 | 138.21 |
| Beilstein | 4267587 |
| EC 号 | 209-529-3 |
| MDL编号 | MFCD00011382 |
| PubChem化学物质编号 | 329758753 |
| NACRES | NB.24 |
产品性质
| 质量水平 | 200 |
| 等级 | ACS reagent puriss. p.a. |
| 测定 | ≥99.0% (T) |
| 形式 | powder or crystals |
| 杂质 | ≤0.001% total nitrogen (N) ≤0.004% total sulfur (as SO4) |
| 缺失 | ≤1% loss on drying, 300 ℃ |
| pH值(酸碱度) | 11-13 (25 ℃, 138 g/L) |
| mp | 891 ℃ (lit.) |
| 痕量阴离子 | chloride (Cl-): ≤30 mg/kg phosphate (PO43-): ≤10 mg/kg silicate (as SiO2): ≤50 mg/kg |
| 痕量阳离子 | Ag: ≤5 mg/kg Al: ≤5 mg/kg As: ≤0.5 mg/kg Ba: ≤5 mg/kg Bi: ≤5 mg/kg Ca: ≤10 mg/kg Cd: ≤5 mg/kg Co: ≤5 mg/kg Cr: ≤5 mg/kg Cu: ≤5 mg/kg Fe: ≤5 mg/kg Li: ≤5 mg/kg Mg: ≤5 mg/kg Mn: ≤5 mg/kg Mo: ≤5 mg/kg Na: ≤200 mg/kg Ni: ≤5 mg/kg Pb: ≤5 mg/kg Sr: ≤5 mg/kg Tl: ≤5 mg/kg Zn: ≤5 mg/kg heavy metals: ≤5 ppm (by ICP-OES) |
| SMILES string | [K+].[K+].[O-]C([O-])=O |
| InChI | 1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2 |
| InChI key | BWHMMNNQKKPAPP-UHFFFAOYSA-L |
安全信息
| 象形图 |  |
| 警示用语： | Warning |
| 危险声明 | H315 - H319 - H335 |
| 预防措施声明 | P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338 |
| 危险分类 | Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3 |
| 靶器官 | Respiratory system |
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
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