17557-23-2 Usage
Chemical Properties
colourless liquid
Uses
Different sources of media describe the Uses of 17557-23-2 differently. You can refer to the following data:
1. Thismay be used as a bifunctional reactive diluent
for viscosity reduction of resins with minimum change
in cured resin properties and to allow increased filler
incorporation.
2. Neopentyl Glycol Diglycidyl Ether is used in preparation of aqueous Epoxy curing agents for orange peel-like leveling coatings.
3. NGDE can be used in the synthesis of epoxy polymers for the development of shape memory polymers. It can also be used in the photopolymerization of cationic polymers.
Production Methods
The ether is made by condensing neopentyl glycol with
epichlorohydrin followed by dehydrochlorination with
caustic.
General Description
Clear liquid.
Air & Water Reactions
Slightly soluble in water.
Reactivity Profile
Neopentyl glycol diglycidyl ether is a ether-alcohol derivative. The ether being relatively unreactive. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert alcohols to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides.
Fire Hazard
Neopentyl glycol diglycidyl ether is combustible.
Carcinogenicity
A 2 year dermal carcinogenicity
study of NPGDGE in C3H mice was conducted at dose levels
of 0.94, 1.87, and 3.75 mg/mouse . Skin tumor incidences
were 10/50, 6/50, and 0/50 at 3.75, 1.87, and 0.94 mg/
mouse; no tumors occurred in the 300 acetone-treated controls.
Tumor potency was calculated to be 1/700th that of
benzo[a]pyrene, which was tested concurrently.
Check Digit Verification of cas no
The CAS Registry Mumber 17557-23-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,5 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17557-23:
(7*1)+(6*7)+(5*5)+(4*5)+(3*7)+(2*2)+(1*3)=122
122 % 10 = 2
So 17557-23-2 is a valid CAS Registry Number.
InChI:InChI=1/C6H10O3.C5H12O2/c1(5-3-8-5)7-2-6-4-9-6;1-5(2,3-6)4-7/h5-6H,1-4H2;6-7H,3-4H2,1-2H3
17557-23-2Relevant articles and documents
Nucleophilic opening of bis-epoxides: A new access to symmetrically functionalised macrocycles
Sebban, Mohamed Faouzi,Vottero, Philippe,Alagui, Abdelhakim,Dupuy, Claude
, p. 1019 - 1022 (2000)
A series of polyhydroxylated symmetrical macrocycles has been prepared in satisfactory yield by 1:1 condensation of several bis-epoxides with various bis-nucleophiles. Preliminary results are reported, which illustrate the synthesis of crown ethers and oxa-azacrown and oxa-thiacrown compounds. (C) 2000 Elsevier Science Ltd.
