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.
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Соляная кислота |
Item Index
Total acidity（HCI） ≥ 31.0
Iron（Fe） ≤ 0.002
Residue on ignition ％ ≤ 0.05
Free chlorine（CI）％ ≤ 0.004
Arsenic(As)％ ≤ 0.... |
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Полиэфирполиол |
型号 羟值 水分 酸值 pH值 钾 色度 黏度 不饱和度
mgKOH/g ％ mgKOH/g mg/Kg APHA mPa.s/25℃ mol/Kg
GEP-560S 54.0-58.0 ≤0.08 ≤0.05 5-7 ≤3 ≤50 400-600 -
GSE-3... |
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Сульфат аммония |
Test items Index
Exterior White crystalline
Nitrogen ％ ≥ 21
Water (Ｈ2Ｏ) ％ ≤ 0.2
free carbonic acid (H2SO4)％ ≤ 0.03
Iron (Fe) ％ ≤ 0... |
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Кокосовые активированные угли |
Item Index
Iodine value(mg/g) ≥ 900
Filling density(g/cm3) 0.45
Loss on drying(%) ≤ 10
Strength(%) ≥ 97
PH value 6-8
Granularity (ey... |
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Гибкая грузовых контейнеров |
Bag of styles Feed inlet Braces Discharge inlet
Cylindrical bag Large opening Side seam of the four corners of sling Flat
Cube Bag Protection c... |
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