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12-Crown-4 Structure

12-Crown-4

Chemical Properties

Melting point 16 °C (lit.)
Boiling point 61-70 °C/0.5 mmHg (lit.)
Density  1.089 g/mL at 25 °C (lit.)
refractive index  n20/D 1.463(lit.)
Flash point >230 °F
storage temp.  Keep in dark place,Sealed in dry,Room Temperature
form  Liquid After Melting
Specific Gravity 1.115 (20℃)
color  Clear colorless to slightly yellow
Water Solubility  MISCIBLE
Sensitive  Air Sensitive
BRN  1363064
CAS DataBase Reference 294-93-9(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII K6069P2C2A
NIST Chemistry Reference 12-Crown-4(294-93-9)
EPA Substance Registry System 1,4,7,10-Tetraoxacyclododecane (294-93-9)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H330
Precautionary statements P304+P340+P310
Hazard Codes  T+,Xn,Xi
Risk Statements  26-36/37/38-20/21/22
Safety Statements  28-36/37-45-36-26
RIDADR  UN 2810
WGK Germany  3
RTECS  XF0550000
3-9-23
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29329995
Toxicity LD50 oral in rat: 2830mg/kg
NFPA 704:
1
4 1

12-Crown-4 Price

12-Crown-4 Chemical Properties,Usage,Production

Preparation Products And Raw materials

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