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Molecular formula: NaOH
Molecular weight: 40
Appearance: glossy white, allowing microstrip color.
Properties: high hygroscopicity, easy to dissolve in water, corrosive, neutralizing with acids to form salts.
Uses: mainly used in papermaking, soap making, textile, printing and dyeing, brazing, pesticide, petrochemical industry; Pharmaceutical, food, and power system chemical water treatment industries.
Packing: use two plaited one plastic packing, 25Kg one bag.
Transportation storage: Solid sodium hydroxide should be stored in a dry warehouse to avoid packaging damage, contamination, dampness and acid contact.
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China hazard Code No: |
82001 |
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UN No.: |
solid caustic soda 1823, caustic soda liquidliquid caustic soda1824 |
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LMDG: |
solid caustic soda 8225, caustic soda liquidliquid caustic soda 8226 |
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Packing mark: |
corrosives |
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Packaging category: |
II category |
Safety: Sodium hydroxide is highly corrosive. Operators must wear protective glasses, gloves and other labor protection appliances.
Implementation standard: GB 11212-89
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Superior grade |
Top grade |
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Sodium hydroxide %≥ |
99.5 |
99.0 |
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Sodium sulfate %≤ |
0.02 |
0.04 |
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Sodium Chloride %≤ |
0.45 |
0.50 |
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Iron(III) oxide %≤ |
0.004 |
0.005 |
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Silicon dioxide %≤ |
0.004 |
0.006 |
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Sodium sulfate %≤ |
0.050 |
0.070 |
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Copper %≤ |
0.0002 |
0.0003 |
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Calcium %≤ |
0.005 |
0.008 |
