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Anhydride

Phthalic Anhydride (PA) Maleic Anhydride (MA) Fumaric acid (FA)

Anhydrides; Acid anhydride

    Acid off of a part of the water, the remaining part is called the acid anhydride. General inorganic acid is a member of the acid, the direct loss of a member of the water to form the acid anhydride, the acid anhydride, decided to change the valence of the element. The organic acids is formed by two or more molecules of the acid through the dehydration reaction between molecules. Only the oxygen-containing have acid anhydride and Anaerobic acid haven't acid anhydride, it is anhydride. Generally regarded as the oxides formed by the acid-shrunk, and many of them are formed to the original Acid by further reacting with water. According to the nature of the acid, it can be divided into : 1)Inorganic acid anhydride .By one or two acid molecules formed shrink; Such as carbon (acid) anhydride or carbon dioxide, CO2, NOx (acid) anhydride or nitrous oxide N2O5; 2)Organic acids anhydride, Consists of two unary acid molecule, or a binary compound made of acid molecule has shrunk. For example, B (acid) anhydride (CH3CO) 2O, phthalic anhydride C6H4 (CO) 2O .

Common acid anhydride:

H2SO4★ SO3 HPO3★ P2O5 CH3COOH★C4H6O3
H2SO4★ SO3 HNO3★ N2O5 N2O
H2SO3★ SO2 HNO2★ N2O3 N2O4Colorless gas

How to determine the oxygen-containing acid anhydride?

Acid in the non-metallic oxides is the same valence of oxygen-containing acid anhydride. For example, carbonate carbon is +4 valence then its anhydride is carbon dioxide.

 

 

Company Info

Tianjin Okeyou International Trade Co., Ltd.

[China]

Business Type: Trading Company

City: Tianjin
Province/State: Tianjin
Country/Region : China

 

Contacts

Add:27H, YiTingYuan Building, 22th LiuWei Road, Hedong District, Tianjin, China.

City: Tianjin
Country/Region: China
Zip: 300143
 

Tel: 86-22-28231369
 

Tel: 86-22-28233369

Mobile Phone: 86-13902118020

E-Mail: cheryl@okeyou.com

 

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Aluminum hydroxide

 

 

Plasticizer

 

 

solvent

 

 

Anhydride

 

Industrial pumps

 

Others

 

 

Tianjin Okeyou International Trade Co., Ltd.

Add:27H, YiTingYuan Building, 22th LiuWei Road, Hedong District, Tianjin, China.