Stearic acid
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Chemical name: stearic acid
English name: Stearic aad
Structural formula: CH3(CH2)16COOH
Physical and chemical properties: white or light yellow wax solid; insoluble in water; easily soluble in ethyl alcohol, diethyl ether, aminoform, methylbenzene, carbon disulfide; excellent lubrication effect
Uses: as vulcanizing activator of natural ruber, synthetic rubber and latex; as plasticizer and chemical stablizer; widely applied in carbon paper, crayon, candle,polishing paste, water-proofing agent, metallic soap, softening agent, high grade lubrication agent aspects
Quality standard: GB/T 9103-1013
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item
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200 type
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400 type
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800 type
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iodine value
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≤2.0
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≤4.0
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≤8.0
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saponification value
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206-211
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203-214
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193-220
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acid value
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205-210
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202-112
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192-218
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colour and lustre
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≤200
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≤400
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≤400
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freezing point℃
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54-57
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≥54
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≥52
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moisture(%)≤
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0.20
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0.20
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0.30
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inorganic acid (%)≤
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0.001
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0.001
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0.001
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