Hotline: +84.91.9708.834

Ammonium Paratungstate (APT) Physical & Chemical Properties

Ammonium paratungstate (or APT) is a white crystalline salt of ammonium and tungsten, with the chemical formula (NH4)10(H2W12O42)·4H2O

Physical and chemical properties of Ammonium paratungstate

Chemical formula : (NH4)10(H2W12O42)·4H2O or 5(NH4)2O.12WO3.5H2O

Under different crystallization conditions may have the following formula :

(1) 3(NH4)2O-7WO3-6H2O

(2) 5(NH4)2-1 2WO3-5H2O

(3) 5(NH4)2O-1 2WO3-5H2O

(4) 5(NH4)2O-1 2WO3-1 1H2O

Molar mass : 3132.2 g/mol

Appearance : White crystalline powder or yellow powder.

Boiling point Decomposes at 600 °C

Solubility : slightly soluble in water, while 20 ℃ solubility less than 2% in water, insoluble in alcohol. The Ammonium paratungstate will lose some ammonia and water of crystallization when heated to 220-280 ℃, can be converted as ammonium metatungstate. Will lose all crystal water and ammonia when heated to above 600 ℃, into completely yellow tungsten oxide.

If you have any other question or inquiry of ammonium paratungstate (APT), please feel free to contact us through the following methods :



Customer interested please contact :

AKhon Company Limited

Address : No. 54, Tong Dan street, Hoang Van Thu ward, Langson city, Langson province, Vietnam
Tel : +84.253.776.667  - Fax : +84.253.713.712
Email: nghia.akhon@gmail.com - website: www.akhon.net 
Person contract : Mr David Nguyen (Cellphone : +84-918-708-834) 
Skype ID : bach.nghia 
WhatsApp/Zalo/WeChat : +84919708834

Hanoi representative office

Address : 10th floor, VP3 building, Linh Dam peninsula, Hoang Mai district, Hanoi, Vietnam.
Email : kien.akhon@gmail.com - website: www.akhon.net 
Person contract : Mr Kelvin Pham (Cellphone : +84-989-552-196) 

Ho Chi Minh representative office

Address : C40BIS, Nguyen Van Qua str., Dong Hung Thuan ward, District 12, Ho Chi Minh city, Vietnam.
Email : 0916344305@outlook.com - website: www.akhon.net


WeChat (Pls scan QR) Zalo (Pls scan QR)

Inquiry form

If you have any other question or inquiry of product, please fill in the following inquiry form, we will reply you immediately