Potassium

• Catalog No.: 679909
• CAS Number: 7440-09-7
• M. F.: K
• M. W.: 39.0983
• Purity: 99.5%

SYNONYMS

• Title: 钾
• IUPAC name: potassium
• IUPAC Traditional name: potassium

DATABASE IDS

• CAS Number: 7440-09-7
• PubChem SID: 24885519
• MDL Number: MFCD00133776

PROPERTIES

• Empirical Formula (Hill Notation): K
• L × W × H: 40 mm × 30 mm × 20 mm
• Purity: 99.5%
• Apperance: cubes (in mineral oil)
• Boiling Point: 760 °C(lit.)
• Density: 0.86 g/mL at 25 °C(lit.)
• Melting Point: 64 °C(lit.)
• Resistivity: 6.1 μΩ-cm, 20°C
• Vapor Pressure: 0.09 mmHg ( 260 °C)
• GHS Signal Word: Danger
• GHS Hazard statements: H260-H314
• European Hazard Symbols: Flammable (F)
• European Hazard Symbols: Corrosive (C)
• Personal Protective Equipment: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• GHS Precautionary statements: P223-P231 + P232-P280-P305 + P351 + P338-P370 + P378-P422
• RID/ADR: UN 2257 4.3/PG 1
• Risk Statements: 14/15-34
• Safety Statements: 26-36/37/39-43-45
• Supplemental Hazard Statements: Reacts violently with water.
• Hazard Class: 4.3
• UN Number: 2257
• Packing Group: 1
• German water hazard class: 1

DETAILS

Description (English)

Packaging
20 g in glass bottle
Quantity
1 cube = ~20g
Application
Combines under pressure with silver metal to form 2 new compounds: K2Ag and K3Ag.†

Description (简体中文)

包装
20 g in glass bottle
Quantity
1 块大约为 20g
Application
高压下与银结合可形成两种新的化合物：K2Ag 和 K3Ag。