Succinic acid is a colorless crystal; the relative density is 1.572 (25/4ºC), the melting point is 188ºC, and it decomposes at 235ºC; it can be sublimated by distillation under reduced pressure; it is soluble in water, slightly soluble in ethanol, ether and acetone
Industrially, succinic acid is often prepared by catalytic reduction of butenedioic acid, and succinic acid can also be prepared by hydrolysis of succinonitrile. In the laboratory, succinic acid can be prepared by reacting two molecules of sodium diethyl malonate with iodine, followed by hydrolysis and decarboxylation.
An important use of succinic acid is to prepare five-membered heterocyclic compounds. For example, succinic acid loses water rapidly when heated to form succinic anhydride, which is a furan ring compound. Succinic anhydride is an important raw material for manufacturing drugs, dyes and alkyd resins. Succinic anhydride and ammonia are heated together to generate succinimide. The hydrogen on the imine group of succinimide can be replaced by bromine to produce N-bromosuccinimide, which is a bromination reagent and mild oxidant for organic synthesis. Succinic acid has antispasmodic, expectorant and diuretic effects in medicine. Diethyl succinate is an important intermediate in organic synthesis. Dibutyl succinate and dioctyl succinate are plasticizers for plastics. Copolymerization of diallyl succinate and 1,3-butadiene can produce artificial rubber.
Çuňňur hyzmatdaşlygy bolan ýokary hilli önümler we bäsdeşlik bahalary bilen üpjün edip biljek köp sanly ýokary hilli zawodlarymyz bar. Şeýle hem, köpçülikleýin satyn almak üçin arzanladyş berip bileris. Köp hünärli ýük ekspeditor kompaniýalary bilen hyzmatdaşlyk edýäris, önümleri ygtybarly we rahat eliňize berip bileris. Eltip beriş wagty, töleg tassyklanandan 3-20 gün soň.
Haryt
|
Standart
|
Analysis Result
|
Daş görnüşi
|
White crystalline or powder,no visible impurities
|
Qualified
|
Succinic acid,w/%
|
≥99.7
|
99.75
|
Moisture,w/%
|
≤0.40
|
0.32
|
Iron,w/%
|
≤0.001
|
0.0001
|
Chloride(as C1-),w/%
|
≤0.002
|
<0.001
|
2-Sulfate(As SO4 ),w/%
|
≤0.02
|
<0.01
|
Residue on ignition,w/%
|
≤0.010
|
0.003
|
Melting point range, ºC
|
185-188
|
186
|
Ease oxide, (mL/g)
|
≤0.40
|
0.05
|
Heavy metals(As Pb),w/%
|
≤0.001
|
<0.001
|
As2O3,w/%
|
≤0.0002
|
Not detected
|
Analytical conclusion
|
Pass
|
Haryt
|
Standart
|
Analysis Result
|
Daş görnüşi
|
White crystalline or powder,no visible impurities
|
Qualified
|
Succinic acid,w/%
|
≥99.5
|
99.65
|
Moisture,w/%
|
≤0.50
|
0.30
|
Iron,w/%
|
≤0.002
|
0.0001
|
Chloride(as C1-),w/%
|
≤0.005
|
<0.001
|
2-Sulfate(As SO4 ),w/%
|
≤0.05
|
<0.01
|
Residue on ignition,w/%
|
≤0.025
|
0.005
|
Melting point range, ºC
|
184-188
|
186
|
Ease oxide, (mL/g)
|
≤0.60
|
0.23
|
Heavy metals(As Pb),w/%
|
≤0.005
|
<0.001
|
As2O3,w/%
|
≤0.0002
|
Not detected
|
Analytical conclusion
|
Qualified product
|
1. Siz zawodmy ýa-da söwda kompaniýasymy?
Biz bir bitewi hyzmaty hödürleýän senagaty we söwdany birleşdirýän birleşdiriji. OEM kabul edilip bilner.
2. Nusga berýärsiňizmi? Mugtmy ýa-da goşmaça?
Mugt nusgalar. Nusganyň ýük tölegini siziň tarapyňyz tölemeli.
3. Hil gözegçiligi bilen baglanyşykly şahadatnamalaryňyz barmy?
Hilini üpjün etmek üçin ISO 9001: 2008 kepilnamasy.
4. Sitata almak üçin näme bermeli?
Size zerur önümiň görnüşi, sargyt mukdary, salgysy we aýratyn talaplary barada habar beriň. Sitata salgylanma üçin wagtynda berler.
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