Сульфид натрия
Class 1 Class 2 Class 3
Test items Superior grade A first-rate product Acceptable product A first-rate product Acceptable product
Sodium Sulphide （Na2S） % ≥ 60 60 60 60 60 65
Sodium sulfite （Na2SO3） % ≤ 2 － － － － －
Thiosulfuric acid （Na2S2O3）% ≤ 2 － － － － －
Iron (Fe) % ≤ 0.03 0.12 0.2 0.003 0.005 0.08
Sodium carbonate （Na2CO3） % ≤ 3.5 5 － 2 3 4
Water insoluble matter % ≤ 0.2 0.4 0.8 0.05 0.1 0.3
Industrial sodium sulfide into three categories: one for ordinary sodium sulfide (commonly known as red alkali); Class 2 low iron sodium sulfide (commonly known as the yellow base); three types of high levels of sodium sulfide.
Packaging: 25kg、40kg、1000kg weaving.
Другие товары поставщика
|
|
фосфат цинка |
Project Medicine raw material special-purpose Feed additive special-purpose Sweetening agent special-purpose Rubber special-purpose Paint special-p... |
|
|
Пиросернистокислый натрий |
Test items Refined High-purity grade Food-grade Industrial-grade
Sodium metabisulfite % ≥ 98.5 98 97.5 97.0
Iron Fe % ≤ 0.0005 0.001 0.0015... |
|
|
оксид цинка |
Test items Indirect method Direct method
Zinc oxide(counted by dried substances )% ≥ 99.7 99.5
Metal ( Zn ) % ≤ None None
Lead oxide( Pb ... |
|
|
Смола-специфической адсорбции золота |
Indicator Parameter
Functional group -N+(CH3) 2H2O
Appearance Milky white opaque sphere
Finished form CLˉ
Moisture content % 45-55
Weigh... |
|
|
Гидроксид натрия |
Item Index
Causiu Soda flakes（NaOH）% ≥ 99
Sodium carbonate（NaCO3）% ≤ 0.5
Sodium chloride（NaCl）% ≤ 0.03
Ferric oxide（Fe2O3）% ≤ 0.00... |
Все товары поставщика
Похожие товары
