2,2-DIMETHYLBUTYRIC ACID

PRODUCT IDENTIFICATION
CAS NO. 595-37-9

2,2-DIMETHYLBUTYRIC ACID
EINECS  NO. 209-865-0
FORMULA C2H5C(CH3)2COOH
MOL WT. 116.16
H.S. CODE

 
TOXICITY

SYNONYMS 2,2-Dimethylbuttersäure; ácido 2,2-dimetilbutírico; 
Acide 2,2-diméthylbutyrique;
SMILES 

                    		
                

                

                    
                        
CLASSIFICATION

                    		
                    
                        

                    		
                

                

                    
                        
PHYSICAL 
                        AND CHEMICAL PROPERTIES

                    		
                

                

                    PHYSICAL 
                        STATE
                    
                        
clear 
                        to yellow liquid

                    		
                

                

                    MELTING 
                        POINT 
                    
                        

                    		
                

                

                    BOILING 
                        POINT
                    
94 - 95 C at 
                        5 mmHg                    
                

                

                    SPECIFIC 
                        GRAVITY 
                    
                        
0.93


                

                

                    SOLUBILITY 
                        IN WATER
                    
                

                

                    pH
                    
                

                

                    VAPOR 
                        DENSITY
                    
                

                

                    AUTOIGNITION 
                        
                    
                        

                    		
                

                

                    NFPA 
                        RATINGS
                    
                

                

                    
                        
REFRACTIVE 
                        INDEX

                    		
                    
                        

                    		
                

                

                    FLASH 
                        POINT
                    94 
                        C
                

                

                    STABILITY
                    Stable 
                        under ordinary conditions. 
                

                

                    
                        
GENERAL 
                        DESCRIPTION & APPLICATIONS

                    		
                

                

                    
                        
Pivalic 
                        acid is the shortest chain tert-carboxylic acid. Atoms within a molecule 
                        occupy space. When 
atoms  are crowded together and overlapped electron clouds, van der Waals repulsions produce an steric hindrance. Steric hindrance may influence conformational equilibria 
                        and reactivity. Although steric hindrance is sometimes a 
                        unfavorable structure due to less readily reaction, 
                        it can provide an escape from  undesired side-reactions, 
                        can affect varying degrees of rate and energy and can 
                        produce the target derivatives which are   more 
resistant to hydrolysis and oxidation than the derivatives from linear  chain. 
                        Pivalic acid is a key intermediate for the target molecules 
                        which require hydrolytic stability and a variety of 
                        chemical resistance. Pivalic acid is used mainly 
                        in the form of chloride salt (pivaloyl chloride) which 
                        are obtained commercially from phosgene. It is used 
                        as an intermediate in the production of peroxides and 
                        peroxy-esters required for the polymer and agrochemical 
                        production. It 
is used as an intermediate to prepare pharmaceuticals ( Ampicillin, 
Amoxycillin, Cephalosporins). 2,2-Dimethylbutyric acid 
                        is the next shortest chain tert-carboxylic acid which 
                        has similar applications with pivalic acid. 


                

                

                    SALES 
                        SPECIFICATION
                

                

                    
                        
APPEARANCE

                    		
                    
                        
clear 
                        to yellowish liquid

                    		
                

                

                    ASSAY
                    
                        
99.0% 
                        min

                    		
                

                

                    WATER
                    
                        
0.5% 
                        max

                    		
                

                

                    TRANSPORTATION
                

                

                    PACKING
                    180kgs 
                        in drum
                

                

                    HAZARD 
                        CLASS
                    
                

                

                    UN 
                        NO.
                    
                

                

                    OTHER 
                        INFORMATION
                

                

                    Hazard Symbols: XI, Risk Phrases: 36/37/38, Safety Phrases: 
                        26-36/37