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126-30-7

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Identification

Name
2,2-Dimethyl-1,3-propanediol
CAS
126-30-7
Synonyms
2,2-BIS(HYDROXYMETHYL)PROPANE
2,2-DIHYDROXY-2,2-DIMETHYLPROPANE
2,2-DIMETHYL-1,3-PROPANEDIOL
DIMETHYLTRIMETHYLENE GLYCOL
NEOL(R)
NEOPENTYLENE GLYCOL
NEOPENTYL GLYCOL
1,3-Dihydroxy-2,2-dimethylpropane
1,3-propanediol,2,2-dimethyl-
2,2-Dimethyl-1,3-dihydroxypropane
2,2-dimethyl-3-propanediol
2,2-Dimethylpropane-1,3-diol
2,2-dimethyltrimethyleneglycol
3-Propanediol,2,2-dimethyl-1
Dimethylolpropane
Hydroxypivalyl alcohol
hydroxypivalylalcohol
Neol
Neopentanediol
NPG Glycol
EINECS(EC#)
204-781-0
Molecular Formula
C5H12O2
MDL Number
MFCD00004685
Molecular Weight
104.15
MOL File
126-30-7.mol

Chemical Properties

Appearance
white solid
mp 
126-128 °C

bp 
208 °C
density 
1.06
vapor density 
3.6 (vs air)

vapor pressure 
<0.8 mm Hg ( 20 °C)

Fp 
107 °C
Stability:
Stable. Incompatible with strong oxidizing agents, acetic anhydride, acid chlorides, moisture. Combustible.
Water Solubility 
830 g/L (20 ºC)
Sensitive 
Hygroscopic
Merck 
14,6458
BRN 
605291
CAS DataBase Reference
126-30-7(CAS DataBase Reference)
NIST Chemistry Reference
1,3-Propanediol, 2,2-dimethyl-(126-30-7)
EPA Substance Registry System
126-30-7(EPA Substance)

Safety Data

Hazard Codes 
Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R36:Irritating to the eyes.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S39:Wear eye/face protection .
WGK Germany 
1

RTECS 
TY5775000


3
HS Code 
29053900

Raw materials And Preparation Products

Hazard Information

General Description
White crystalline solid. Melting point 130°C.
Reactivity Profile
2,2-DIMETHYLPROPANE-1,3-DIOL(126-30-7) may generate toxic gases in combination of with alkali metals, nitrides, and strong reducing agents. Reacts with inorganic acids and carboxylic acids to form esters plus water. Converted to aldehydes or acids by oxidizing agents. May initiate the polymerization of isocyanates and epoxides.
Air & Water Reactions
Soluble in water.
Health Hazard
May be harmful by ingestion or skin absorption. Causes eye and skin irritation. Material is irritating to mucous membrane and upper respiratory tract. INHALATION: Call for medical aid. Remove to fresh air. If breathing has stopped, give artificial respiration. If breathing is difficult, give oxygen.
Fire Hazard
Special Hazards of Combustion Products: Emits toxic fumes under fire condition.

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