产品介绍：
产品说明
分析说明
Assay (acidimetric): 99.5 - 103.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (0.01 M Solution, 25 °C): 9.15 - 9.20
pH-value (4 %, water): 9.0 - 9.6
Chloride (Cl): ≤ 0.0007 %
Phosphate (PO₄): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.001 %
Pb (Lead): ≤ 0.0005 %
Corresponds to ACS,ISO,Reag. Ph Eur
基本信息
| 经验(实验)分子式 | B4Na2O7 · 10H2O |
| 分子量 | 381.37 |
| MDL编号 | MFCD00149193 |
| EC索引号 | 215-540-4 |
产品性质
| 质量水平 | 100 |
| 等级 | ACS reagent |
| 机构 | reag. ISO reag. Ph. Eur. |
| 蒸汽压 | 0.213 hPa ( 20 ℃) |
| 测定 | 99.5-103.0% (acidimetric) |
| 效能 | 2660 mg/kg LD50, oral (Rat) >2000 mg/kg LD50, skin (Rabbit) |
| pH值(酸碱度) | 9.2 (20 ℃, 47 g/L in H2O) |
| mp | 75 ℃ (Elimination of water of crystallisation) |
| 溶解性 | 49.74 g/L |
| 密度 | 1.72 g/cm3 at 20 ℃ |
| 堆积密度 | 750 kg/m3 |
| 储存温度 | 2-30℃ |
| InChI | 1S/B4O7.2Na.10H2O/c5-1-9-3(7)11-4(8)10-2-6;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;; |
| InChI key | OJPFLODMGUZMKD-UHFFFAOYSA-N |
安全信息
| 象形图 |   |
| 警示用语： | Danger |
| 危险声明 | H319 - H360FD |
| 预防措施声明 | P201 - P202 - P264 - P280 - P305 + P351 + P338 - P308 + P313 |
| 危险分类 | Eye Irrit. 2 - Repr. 1B |
| 储存分类代码 | 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
