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  Home | Products | Chemical Industrial

  standard introduces:

Name	Specs
	Chemical analysis	Grade one	Grade two
Industrial Naphthalene (GB/T6699-1998)	Crystal Point ,℃ (not less than)	78.0	77.5
	Not the volatile matter ,% (less than)	0.04	0.06
	Ash ,% (less than)	0.01	0.02
	Water Content, %  (less than)	5.0	5.0
Magnesium sulphate heptahydrate	MgSO47H2O %	99
	Chloride%	≤0.015
	Fe %	≤0.002
	Heave metal%	≤0.001
	Aa%	≤0.0002
	MgO%	≥16
	Mg%	≥9.8
	Zn%	≤0.003
	Ca	340ppm
	PH	4-6
	Appearance	white
	Size	1-2 mm
Sulphur lump	sulphur	99.8%PTCmin
	Moisture(105℃)	0.1%PCT max
	Ash content(825℃)	0.07%PCTmax
	Acidity as H2SO4	0.003%PCT max
	Size	0-100mm
	package	Jumbo bags