sodium sulphide

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The national sodium sulphide standards

------local level company standard flag , lable , package , transportation , storage

National sodium sulphide standards of PRC.
Licensed by national quality technical supervision department

sodium sulphide Red Flake

	Na2S	≥ 50 ~ 60 %
	Fe	≤ 0.15 % 　(1500ppm)
	Na2CO3	≤ 5.0 %
	Water insoluble	≤ 0.4 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥ 50 ~ 60 %
	Fe	≤ 0.015 % 　（150ppm）
	Na2CO3	≤ 2.0 %
	Na2SO3	≤2.00 %

	Na2S2O3	≤ 2.00 %
	Water insoluble	≤ 0.2 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥50 ~ 60 %
	Fe	≤ 0.012 % 　(120ppm)
	Na2CO3	≤ 2.0 %
	Na2S2O3	≤ 2.00 %

	Na2SO3	≤ 2.00 %
	Water insoluble	≤ 0.2 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥50 ~ 60 %
	Fe	≤ 0.01 　(100ppm)
	Na2CO3	≤ 2.0 %
	Na2SO3	≤2.00 %
	Na2S2O3	≤2.00 %
	Water Insoluble	≤ 0.2 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥ 50 ~ 60 %
	Fe	≤ 0.008　(80ppm)
	Na2CO3	≤ 2.0 %
	Na2SO3	≤ 2.00 %

	Na2S2O3	≤ 2.00 %
	Water Insoluble	≤ 0.2 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥ 50 ~ 60 %
	Fe	≤ 0.005% 　(50ppm)
	Na2CO3	≤ 2.00 %
	Water insoluble	≤ 0.2 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥ 50 ~ 60 %
	Fe	≤0.003% 　(30ppm)
	Na2CO3	≤ 2.0 %
	Water insoluble	≤ 0.2 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥ 50 ~ 60 %
	Fe	≤0.002 % 　(20ppm)
	Na2CO3	≤ 2.0 %
	Water insoluble	≤ 0.3 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥50 ~ 60 %
	Fe	≤0.0015 % 　(15ppm)
	Na2CO3	≤ 1.8 %
	Na2SO3	≤1.00%

Water insoluble

≤ 0.03%

sodium sulphide Yellow Flake low Iron

	Na2S	≥ 50 ~ 60 %
	Fe	≤ 0.0010 % 　(10ppm)
	Na2CO3	≤ 1.8 %
	Water insoluble	≤ 0.3 %

sodium sulphide Yellow Flake low Iron

	Na2S	≥ 50 ~ 60 %
	Fe	≤ 0.0005%　(5ppm)
	Na2CO3	≤ 1.7 %
	Water Insoluble	≤ 0.2 %

Sodium sulphide (White)

	Na2S	≥ 55%
	Fe	≤ 0.001%　（10ppm)
	Na2SO3	≤ 0.3%
	Na2S2O3	≤ 0.7%
	Na2CO3	≤ 0.05%
	Water Insoluble	≤ 0.05

sodium sulphide crystal

	Na2S	≥ ４３%
	Fe	≤ 0.001%　（10ppm)
	Na2SO3	≤ 0.3%
	Na2S2O3	≤ 0.7%
	Na2CO3	≤ 0.05%
	Water Insoluble	≤ 0.05

sodium sulphide Anhydrate White granul

	Na2S	≥ 92-92 %
	Fe	≤ 0.001%�((10ppm)
	Na2SO3+Na2S2O3	≤ 3.0 %
	Water Insoluble	≤ 0.05 %

It is high to contain the deal sodium the sulphide

	Na2S	≥ 65-70%
	Na2CO3	≤ 5.0 %
	Fe	≤ 0.15 %　 (1500ppm)
	Water Insoluble	≤ 0.40 %

Liquid sodium sulphide

	Na2S	≥ 30 %
	Fe	≤ 0.15%　 (1500ppm)
	Na2CO3	≤ 3.0 %
	Water Insoluble	≤ 0.4 %

flag and lable
There should be firm and clear flag on the package of industrial sodium sulphide , and the flag should contain the name and address of the works , the name and the brand of the product , net weight , class , the standard number and the rot stamp of GB190-1990 . Each lot of the product should have the quality certification . It contains the name and the address of the firm ,the name and the brand of the product , net weight , class , the lot number or bring out date , the standard number and the qualified product certification .
package , transportation , storage
For Class A and Class B industrial sodium sulphide , the package will meet the customers` order to use the safe package made of steel or iron . For the Class C industrial sodium sulphide , it is packed in iron pail , and the net weights are 25kgs ,50kgs, 150kgs.
The iron pail must be sealing and firm , other kinds of package must be insure the products` quality stable and conform the relevant fixed safe transportation rules .
During the process of transportation and storage the industrial sodium sulphide products should be in a airing arounding , and prevent from rain , breathing , heat , and should not be touch with acidulous rot stuff . And also should insure the packages are not broke .

West China International Sodium Sulfide Information Network Center
West China Global E-Trading Center
HEAD OFFICE: Yongjin East St, Dengkou County, Inner Mongolia, China
http://www.chinana2s.com/ http://www.cnwesthotline.com/
Tel: 0086-0478-4213382 　Fax: 0086-0478-4215543　 E-mail: qinzijing@yahoo.com.cn