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7727-54-0

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Basic Information
CAS No.: 7727-54-0
Name: Ammonium persulfate
Molecular Structure:
Molecular Structure of 7727-54-0 (Ammonium persulfate)
Formula: H8N2O8S2
Molecular Weight: 228.20
Synonyms: diazanium,sulfonatooxy sulfate
EINECS: 231-786-5
Density: 1.982 g/cm3
Melting Point: 120 °C
Solubility: 582 g/L (20 °C) decomposes
Appearance: Off-white crystalline powder
Hazard Symbols: OxidizingO,HarmfulXn
Risk Codes: 8-22-36/37/38-42/43
Safety: 22-24-26-37
Transport Information: UN 1444 5.1/PG 3
PSA: 150.44000
LogP: 1.34960
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Specification

1. Introduction of Ammonium persulfate
Ammonium persulfate is a strong oxidizing agent, It is used to etch copper on printed circuit boards as an alternative to ferric chloride solution. The IUPAC Name of it is diazanium sulfonatooxy sulfate.

2. Properties of Ammonium persulfate 
Melting Point: 120 °C
Density: 1.98 
Physical Appearance: Off-white crystalline powder
Water Solubility: 582 g/L (20 ºC) decomposes
Sensitive: Moisture Sensitive 
Stability: Stable. Oxidizing. May ignite combustible material. Incompatible with bases, combustible material, hydrogen peroxide, peroxy compounds, silver compounds, zinc. May decompose upon exposure to water or moist air. 
Product Categories: Industrial/Fine Chemicals;Inorganic Chemicals;Inorganics;Biochemistry;Reagents for Electrophoresis;Chemistry 

3. Toxicity of Ammonium persulfate

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral 689mg/kg (689mg/kg)   "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 5, Pg. 468, 1986.

4. Safety Information of Ammonium persulfate

Hazard Codes: OxidizingO,HarmfulXn
Risk Statements: 8-22-36/37/38-42/43 
R8 :Contact with combustible material may cause fire. 
R22:Harmful if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R42/43:May cause sensitization by inhalation and skin contact.
Safety Statements: 22-24-26-37 
S22:Do not breathe dust. 
S24:Avoid contact with skin. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37:Wear suitable gloves.
RIDADR: UN 1444 5.1/PG 3
WGK Germany: 1
RTECS: SE0350000
HazardClass: 5.1
PackingGroup: III

5. Preparation ofAmmonium persulfate
Ammonium persulfate was prepared by H. Marshall by the method used for the preparation of potassium persulfate — by the electrolysis of a solution of ammonium sulfate and sulfuric acid.

6. Use of Ammonium persulfate
Ammonium persulphate is the main component of Nochromix. And on dissolving in sulfuric acid, it is used to clean laboratory glassware as a metal-free alternative to chromic acid baths.
Other applications of APS:
In the cosmetics industry as a booster for hair bleaches and an oxidizer in hair dyes
In the paper industry for re-pulping and de-inking
In order to recover metals and metal salts, for oxidative treatment of high grade metal ores
In the photographic industry for regenerating bleaching baths for color stock for the production of desinfectants
In-situ decontamination of industrial areas: degradation of chlorinated hydrocarbons.