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 .

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Sulfide Science and Technology Information Network

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