Adipic acid
Use: Used in producing hexane diamine nylon 66 salt, polyester foam plastic, plasticizer, synthetic lubricant, food additive, synthetic leather, synthetic dyes and flavor etc.
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Product name
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Adipic acid
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Item
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Superior class
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First class
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qualified
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result
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appearance
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White crystalline powder
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White crystalline powder
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Purity % m/m ≥
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99.7
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99.7
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99.5
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99.8
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Melting point ≥
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151.5
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151.5
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151
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152.8
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Ammonia solution color,
Pt-Co ≤
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5
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5
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15
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1
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Moisture, % m/m ≤
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0.20
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0.27
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0.40
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0.17
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Ash, mg/kg ≤
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7
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10
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35
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4
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Iron, mg/kg ≤
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1.0
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1.0
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3.0
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0.3
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Nitric acid, mg/kg ≤
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10.0
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10.0
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50.0
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1.1
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Oxidable matter, mg/kg ≤
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60
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70
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----
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17
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Chroma of melts, Pt-Co ≤
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50
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----
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----
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10
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