PRODUCT NAME: Sodium Hydrosulfite
CAS: 7775-14-6
EINECS: 231-890-0
MOLECULAR FORMULA: Na2S2O4
MOLECULAR WEIGHT: 174.13
PURITY: 85%,88%,90%
APPEARANCE: white or light yellow crystal powder
HAZARD: class 4.2 (corrosive)
UN NO: 1384
MELTING POINT: 300℃
BOILING POINT: 1390℃
EXECUTIVED STANDARD : HG/2074-2004
HS CODE:28311010.00
SPECIFIC GRAVITY:0.8 - 1.02(Water = 1)
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ITEMS
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STANDARD
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Parameter
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Grade
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90%
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88%
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85%
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85%(food grade)
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Na2S2O4
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90.89%
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89.00%
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86.51%
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86.94%
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Na2S2O5
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6.59%
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6.68%
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6.89%
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6.57%
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Na2CO3
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1.69%
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3.30%
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5.70%
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5.59%
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Na2S2O3
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0.17%
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0.19%
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0.42%
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0.39%
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Na2SO3
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0.22%
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0.20%
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0.38%
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0.35%
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Fe
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15ppm
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13ppm
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18ppm
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11ppm
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Water Insolubles
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0.05%
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0.04%
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0.04%
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0.01%
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USES: Textile, pulp and paper, leather
PACKING: 50kg iron drums