216615

铬酸钾

ACS reagent, ≥99.0%

• 线性分子式: K₂CrO₄
• CAS号: 7789-00-6
• 分子量: 194.19
• EC 号: 232-140-5
• MDL编号: MFCD00011368
• PubChem化学物质编号: 329752190
• NACRES: NB.24

属性

• 等级: ACS reagent
• 蒸汽密度: 6.7 (vs air)
• 测定: ≥99.0%
• 形式: crystals
• 杂质: ≤0.005% insolubles
• pH值（酸碱度）: 8.6-9.8 (25 °C, 5%)
• mp: 971 °C (lit.)
• 痕量阴离子: chloride (Cl^-): ≤0.005%; sulfate (SO₄^2-): ≤0.03%
• 痕量阳离子: Ca: ≤0.005%; Na: ≤0.02%
• SMILES string: [K+].[K+].[O-][Cr]([O-])(=O)=O
• InChI: 1S/Cr.2K.4O/q;2*+1;;;2*-1
• InChI key: XMXNVYPJWBTAHN-UHFFFAOYSA-N

安全信息

• 象形图: GHS07,GHS08,GHS09
• 警示用语：: Danger
• 危险声明: H315 - H317 - H319 - H335 - H340 - H350i - H410
• 预防措施声明: P202 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• 危险分类: Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• 靶器官: Respiratory system
• 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 3
• 闪点(F): Not applicable
• 闪点(C): Not applicable