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Ammonium carbonate

Số CAS
506-87-6
Khối lượng phân tử
96.09
Công thức phân tử / ký hiệu hóa học
(NH4)2CO3

Mô tả

Apearances: Matt orthorhombic crystalline powder. Has a strong smell of ammonia. Generally not without water and salt, and industrial products is actually a complex salt of ammonium bicarbonate and ammonium carbamate. Ammonia-containing 31%, 56% carbon dioxide. Soluble in water, insoluble in ethanol, carbon disulfide, and concentrated ammonia. Unstable in air and will gradually become ammonium bicarbonate and ammonium carbamate. The dried product is very easily decomposed at 58 ℃ release ammonia and carbon dioxide. Aqueous solution at 70 ℃ begins to decompose. Light and heat are unstable. Slightly hygroscopic.

ỨNG DỤNG

Used as baking powder, the raw materials of various ammonium salts, buffers, auxiliaries, fertilizers and analytical reagents. Consumption of ammonium carbonate is used as buffers, neutralizers, leavening agents, fermentation-promoting agent (manufactured wine).

Keywords:Surface treatment chemicals



Phiếu kiểm nghiệm

(AR)

(CP)

(NH3) ≥

40.0

40.0

Residue on ignition (as sulfate) ≤

0.02

0.01

Sulfur compounds (SO4) ≤

0.002

0.005

Chlorides (Cl) ≤

0.05

0.001

Water insolubles  ≤

0.02

0.01

(Fe)    ≤

≤0.0081

0.0005

Clarity Test

Qualified

Qualified

Heavy metals (Pb) ≤

0.0005

0.001