Manufacturer Supply High Quality CAS 141-82-2 Malonic Acid

• CAS No.: 141-82-2
• Formula: C3h4o4
• EINECS: 205-503-0
• Type: Synthesis Material Intermediates
• Appearance: White Powder
• Quality: Industrial
• Model NO.: TY-02ALI
• Colour: White
• Package: Foil Bag
• Place: China
• Assay: 99%
• Shelf: 2 Years
• Transport Package: 25kg/Drum 5g, 100g, 500g, 1kg, 10kg, 100kg, 200kg
• Specification: 25kg/drum
• Trademark: tongyon
• Origin: China
• Production Capacity: 5000kg/Month

Product Description

 

Product name	Malonic acid
CAS	141-82-2
Appearance	white powder
Assay	99%
Storage	Cool and Protect from light

Malonic acid
Product Name Malonic acid

CAS 141-82-2

MF C3H4O4

MW 104.06

EINECS 205-503-0

MOL File 141-82-2.mol    Chemical Properties

Melting point 132-135 °C (dec.) (lit.)
Boiling point 140ºC
Density  1.619 g/cm3 at 25 °C
refractive index  1.4780
Flash point 157°C
storage temp.  Sealed in dry,Room Temperature
solubility  1 M NaOH: soluble100mg/mL, clear to slightly hazy, colorless to faintly yellow
pka 2.83(at 25ºC)
form  Liquid
color  White
Water Solubility  1400 g/L (20 ºC)
Merck  14,5710
BRN  1751370
Stability Stable. Incompatible with oxidizing agents, reducing agents, bases.



Usage And Synthesis
Dibasic acid

Malonic acid is also known as methanee dicarboxylic acid, carrot acid, malic acid reduction, beet acid. There are three kinds of crystal forms, of which two are triclinic, and one is monoclinic. That crystallized from ethanol is white triclinic crystals. Its relative molecular mass is 104.06. The relative density is 1.631 (15 ºC). Melting point is 135.6ºC. It decomposes to acetic acid and carbon dioxide at 140ºC. It does not decompose at 1.067×103~1.333×103Pa vacuum, but directly sublimates. It is not soluble in benzene. It is soluble in water, and the solubility is respectively 61.1 (0 ºC), 73.5 (20 ºC), 92.6 (50 ºC) in water, and 57 (20 ºC)in ethanol, 5.7 (20 ºC) in diethyll ether. It is slightly soluble in pyridinee. It can decompose to formicc acid and carbon dioxide in case of potassiuum permanganatee. Malonic acid is dibasic acid. It has a typical reactive of dibasic acids, such as that its methylene is active, and it can be an addition, alkylation, amination, halogenation reaction; its two carboxyl groups are very close and they can be dehydrated; esterification with alcohol; decarboxylation by heating; condensation with carbonyl compounds; addition with compounds that containing active double bonds. Hydroxyl in two carboxyl groups of malonic acid were all replaced by ethoxy (see substitution reaction) to produce diethyl malonate. Diethyl malonate is important raw materials in organic synthesis for dyes and drugs synthesis. Because its molecules containing active methylene, which can react with sodium alcohol to generate sodium malonate. Then sodium malonate reacts with a variety of lively halides to generate substituted malonate. Malonate can prepare various monocarboxylic acids, dicarboxylic acids, keto acids and other compounds by hydrolysis reaction to lose carboxyl. As substituted malonate reacts with urea to prepare a commonly used hypnotic barbiturates.


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