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ACETYLSALICYLIC ACID

PRODUCT IDENTIFICATION
CAS NO. 50-78-2 ACETYLSALICYLIC ACID
EINECS NO. 200-064-1
FORMULA CH3COOC6H4COOH
MOL WT. 180.16
H.S. CODE 3004.9
TOXICITY Oral rat LD50: 200 mg/kg
SYNONYMS ASPIRIN; 2-(acetyloxy)-Benzoic acid; Solpyron; Ecotrin;
Colfarit; Asatylin; Acetophen; Acetosal; Rhodine; o-Acetoxybenzoic Acid; Extren; Benaspir; Entericin; Bialpirinia; Contrheuma Retard; Salicylic Acid Acetate; Acetylsalicylsaure (German); Acido Acetilsalicilico (Italian); Acimetten; Acide Acetylsalicylique (French); Acido o-Acetil-benzoico (Italian); 2-Acetoxybenzoova (Czech); Kyselina Acetylsalicylova (Czech); 
DERIVATION 2-Hydroxy-Benzoic Acid - Salicylic acid ( 69-72-7 )
CLASSIFICATION
GENERAL DESCRIPTION
Acetylsalicylic Acid, also known by trade name Aspirin, is an acetyl derivative of salicylic acid that is a white, crystalline, weakly acidic substance, with melting point 137°C. It is useful in the relief of headache and muscle and joint aches. Aspirin is also effective in reducing fever, inflammation, and swelling and thus has been used for treatment of rheumatoid arthritis, rheumatic fever, and mild infection. Large doses cause acid-base imbalance and respiratory disturbances and can be fatal, especially in children. Acetaminophen (known by trade name Tylenol), which does not cause gastric irritation but does lower fever and relieve pain, is often substituted for Aspirin.
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE Odorless, Colourless or a white crystalline powder 
MELTING POINT  136 C (with decomposition)
BOLING POINT 140 C
SPECIFIC GRAVITY  1.35
SOLUBILITY IN WATER 1g/100g water @ 37C
pH
VAPOR DENSITY
AUTOIGNITION
NFPA RATINGS Health: 2 Flammability: 1 Reactivity: 0
REFACTIVE INDEX
FLASH POINT
STABILITY Stable in dry air (hydrolyzes in moist air, decomposes in hot water)
APPLICATIONS
It is used in analgesics, anti-inflammatories, antipyretics, anticoagulants and antirheumatics. It is also used as an additivr in food, animal feed, drug and cosmetic. 
SALES SPECIFICATION
BIBLIOGRAPHY BP / USP / JP 
APPEARANCE white to off-white crystalline powder
IDENTITY Complies
SOLUTION IN ETHANOL Colourless, Clear
ASSAY 99.5 to 100.5 %
FREE SALICYLIC ACID 0.1 % max
LOSS ON DRYING 0.5 % max
SULPHATED ASH 0.1 % max
HEAVY METALS (as Pb) 20 ppm max
RELATED SUBSTANCES 0.25% max 
PARTICLE SIZE Retained on 180 µm (50 % maximum)
Retained on 710 µm (10 % maximum) 
TRANSPORTATION
PACKING 25kgs in Fiber Drum
HAZARD CLASS 6.1 (Packing Group: III)
UN NO. 2811
OTHER INFORMATION
European Hazard Symbols: XN, Risk Phrases: 22/36/37/38, Safety Phrases:26/28
GENERAL DESCRIPTION OF SALICYLIC ACID 
Salicylic Acid is a white crystalline powder or needle-shaped crystals with sweetish taste; soluble in acetone, ether, alcohol, boiling water, benzene and turpentine, sparingly soluble in chloroformbenzene, slightly soluble in water; melts at 158 C. It is prepared commercially by sodium salicylate which derived from sodium phenolate with carbon dioxide under heating and pressure. It contains both a hydroxyl and a carboxyl group, which react with either an acid or an alcohol. The carboxyl group forms esters with alcohols; e.g. methyl salicylate is formed with methanol, which used in food flavorings and preservatives; menthyl salicylate is formed with methanol, which is used in suntan lotions; phenyl salicylate (called salol) is formed with phenol, which is used as an antiseptic and antipyretic agent. The hydroxyl group reacts with acetic acid to form acetylsalicylic acid (called aspirin). Salicylic Acid is important for the preparation of other pharmaceutical products, dyes, flavours, and preservatives. The sodium salt (Sodium salicylate), a shiny white powder, is used for antiseptics preparations and as a preservative. Salicylic Acid derivatives are used in formulating flavors, preservatives and UV absorbers for food and cosmetics as well as plastics. They are used in manufacturing pharmaceuticals mainly analgestics and antipyretics for the relief of pain and fever. 
   
   

Certificate of Analysis

Product Name : Aspirin
Standard : B.P.1998 and USP25



Item Specification Result
Characteristics Colorless crystals or White crystalline powder Conforms
Identification Positive Positive
Heavy metals ≤10ppm Conforms
Melting point 143oC 143oC
Clarity Clear and colorless Conforms
Colour of solution ≤GY4 Conforms
Acidity ≤0.1ml ≤0.1ml
Loss on drying ≤0.5% 0.06%
Related substances Up to standard Up to standard
Residue on ignition ≤0.05% 0.05%
Free salicylie acid ≤0.05% 0.015%
Chloride ≤0.014% 0.014%
Sulfate ≤0.04% 0.01%
Organic volatile impurities Up to standard Up to standard
Assay 99.5-100.5% 100.0%
   
       
       
       
       
       
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