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141-52-6

Name Sodium ethoxide
CAS 141-52-6
EINECS(EC#) 205-487-5
Molecular Formula C2H5NaO
MDL Number MFCD00012417
Molecular Weight 68.05
MOL File 141-52-6.mol
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Chemical Properties

Appearance White powder, sometimes having brownish tinge; readily hydrolyzes to alcohol and sodium hydroxide.
Melting point  260 °C
Boiling point  91°C
density  0.868 g/mL at 25 °C
vapor density  1.6 (vs air)
vapor pressure  <0.1 mm Hg ( 20 °C)
refractive index  n20/D 1.386
Fp  48 °F
storage temp.  Store at R.T.
solubility  Soluble in ethanol and methanol.
form  Liquid
color  Yellow to brown
Specific Gravity 0.868
PH 13 (5g/l, H2O, 20℃)
Stability: Reacts violently with acids, water. Incompatible with chlorinated solvents, moisture. Absorbs carbon dioxide from the air. Highly flammable.
Water Solubility  Miscible
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
Sensitive  Moisture Sensitive
Merck  14,8613
BRN  3593646
Exposure limits ACGIH: STEL 1000 ppm
OSHA: TWA 1000 ppm(1900 mg/m3)
NIOSH: IDLH 3300 ppm; TWA 1000 ppm(1900 mg/m3)
CAS DataBase Reference 141-52-6(CAS DataBase Reference)
Storage Precautions Store under inert gas
EPA Substance Registry System 141-52-6(EPA Substance)
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Safety Data

Hazard Codes  F,C,Xi
Risk Statements 
R11:Highly Flammable.
R14:Reacts violently with water.
R34:Causes burns.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S8:Keep container dry .
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S43:In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add-Never use water) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S36:Wear suitable protective clothing .
RIDADR  UN 3274 3/PG 2
WGK Germany  1
F  3-8-10-23
Autoignition Temperature 30 - 50 °C
TSCA  Yes
HazardClass  4.2
PackingGroup  II
HS Code  29051900
Hazardous Substances Data 141-52-6(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 598 mg/kg

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