ITEM	SPECIFICATIONS
Preperty:	White crystalline powder
Content %:	>=99.0
Melting Point °C:	67-72
Loss in dry,%	=<0.5
Acid degree:	qualified
Sulfate (counted by SO42-),%	=<0.024
4-Hydroxybenzoic acid and Salicylic acid	Qualified
AS,%:	=<0.0003
Heavy metal (count by Pb),%:	=<0.001
Remain in burning %	=<0.1

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