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4637-24-5

Name N,N-Dimethylformamide dimethyl acetal
CAS 4637-24-5
EINECS(EC#) 225-063-3
Molecular Formula C5H13NO2
MDL Number MFCD00008482
Molecular Weight 119.16
MOL File 4637-24-5.mol
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Chemical Properties

Appearance clear colourless liquid
Melting point  -85°C
Boiling point  102-103 °C/720 mmHg (lit.)
density  0.897 g/mL at 25 °C(lit.)
vapor pressure  34.5hPa at 20℃
refractive index  n20/D 1.396(lit.)
Fp  45 °F
storage temp.  Flammables area
solubility  Miscible with most organic solvents.
form  Solid
pka 5.00±0.50(Predicted)
color  White to off-white
PH 7 (H2O)
explosive limit 1.3-17.7%(V)
Water Solubility  hydrolysis
Sensitive  Moisture Sensitive
Detection Methods GC,NMR
BRN  506020
Exposure limits ACGIH: TWA 200 ppm; STEL 250 ppm (Skin)
OSHA: TWA 200 ppm(260 mg/m3)
NIOSH: IDLH 6000 ppm; TWA 200 ppm(260 mg/m3); STEL 250 ppm(325 mg/m3)
LogP 0.750 (est)
CAS DataBase Reference 4637-24-5(CAS DataBase Reference)
NIST Chemistry Reference Methanamine, 1,1-dimethoxy-N,N-dimethyl-(4637-24-5)
Storage Precautions Moisture sensitive
EPA Substance Registry System 4637-24-5(EPA Substance)
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Safety Data

Hazard Codes  F,Xn,Xi
Risk Statements 
R11:Highly Flammable.
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R36/38:Irritating to eyes and skin .
R20:Harmful by inhalation.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R10:Flammable.
Safety Statements 
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 .
S36/37:Wear suitable protective clothing and gloves .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S33:Take precautionary measures against static discharges .
S29:Do not empty into drains .
S7/9:Keep container tightly closed and in a well-ventilated place .
RIDADR  UN 3271 3/PG 2
WGK Germany  1
F  21
Autoignition Temperature 155 °C
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29225000
Toxicity
LD50 orally in Rabbit: > 5000 mg/kg

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