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ChemicalBook >> CAS DataBase List >>Potassium

Potassium suppliers

Potassium

CAS:
7440-09-7
MF:
K
MW:
39.1

Company Type

Properties

Melting point:
64 °C (lit.)
Boiling point:
760 °C (lit.)
Density 
0.86 g/mL at 25 °C (lit.)
vapor pressure 
0.09 mm Hg ( 260 °C)
refractive index 
n20/D 1.334
storage temp. 
2-8°C
solubility 
H2O: soluble
form 
rod
color 
Silver/gray
Specific Gravity
0.86
Odor
Odorless
PH
5.0 (H2O, 20°C)
Resistivity
6.1 μΩ-cm, 20°C
Water Solubility 
reacts
Sensitive 
Air & Moisture Sensitive
Exposure limits
ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)
Dielectric constant
5(0.0℃)
Stability:
Stable. Moisture and air-sensitive. Spontaneously combustible through the generation and ignition of hydrogen. Reacts violently with water and acids, alcohols, carbon monoxide. Store under oil.

Safety Information

Symbol(GHS) 
GHS hazard pictogramsGHS hazard pictograms
GHS02,GHS05
Signal word 
Danger
Hazard statements 
H260-H314
Precautionary statements 
P223-P231+P232-P260-P280-P303+P361+P353-P305+P351+P338
Hazard Codes 
F,C,Xi,T
Risk Statements 
14/15-34-36/38-23/24/25
Safety Statements 
8-43-45-5B-5*-36/37/39-26-5-27
RIDADR 
UN 2257 4.3/PG 1
WGK Germany 
2
RTECS 
TS8050000
8
Autoignition Temperature
25 °C or below in air or oxygen
TSCA 
Yes
HS Code 
2827 39 85
HazardClass 
4.3
PackingGroup 
I
Toxicity
Ignites in air and reacts explosively with water; highly corrosive to the skin and eyes. Potassium reacts with the moisture on skin and other tissues to form highly corrosive potassium hydroxide. Contact of metallic potassium with the skin, eyes, or mucous membranes causes severe burns; thermal burns may also occur due to ignition of the metal and liberated hydrogen.

Use

Potassium is an important reagent (something that is used in chemical reactions to analyze other substances) that forms many compounds used in chemical and industrial laboratories. It is used to manufacture both hard and soft soaps, as a bleaching agent, and where a highly caustic chemical is required. Potassium is essential to all living organisms. It is a trace element required for a healthy diet and is found in many foods. One natural source is bananas.

4 supplier list of "Potassium"

  • 1AMP$80.10
  • Product Name:Potassiumstandard
  • Products Intro:Brand:Sigma-Aldrich | Product Number:1.09924 | Purity:1000mgK,(KClinH?O)Titrisol?
  • Company Type: Trader
  • Country/Region: UNITED STATES
  • 1kit$132.30
  • Product Name:Potassium
  • Products Intro:Brand:Alfa Aesar | Product Number:023285 | Purity:Quantofix?TestStrips
  • Company Type: Trader
  • Country/Region: UNITED STATES
  • 1g$105.00
    25g$443.00
  • Products Intro:Brand:Strem Chemicals | Product Number:93-1990
  • Company Type: Trader
  • Country/Region: UNITED STATES
  • 5g$246.00
  • Products Intro:Brand:1pchem | Product Number:1P003UBL | Purity:99%
  • Company Type: Trader
  • Country/Region: UNITED STATES

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