http://www.vietnamchemtech.com.vn/chitietSP.asp?id_pro=1566
Sodium hydroxide
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NaOH
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Caustic soda
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CAS-No.1310-73-2 EC-No.215-185-5 HS-No.28151100
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M=40.00 g/mol Spec.density 2.13 g/cm3 (20°C)
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Melting point 323°C Boilting point 1390°C(1013 hPa)
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R 35 S 26-37/39-45 UN 1823 DG:8,II
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Sodium hydroxide FLAKE AR
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Specification GB/T 629-1997
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Assay(NaOH)
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>=96.0%
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Carbonate(as Na2CO3)
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<=1.5%
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Clarity of solution
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pass
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Chloride(Cl)
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<=0.005%
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Sulfate(SO4)
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<=0.005%
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Total nitrogen(N)
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<=0.001%
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Phosphate(PO4)
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<=0.001%
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Silicate(SiO3)
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<=0.01%
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Aluminum(Al)
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<=0.002%
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Potassium(K)
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<=0.05%
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Calcium(Ca)
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<=0.01%
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Iron(Fe)
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<=0.001%
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Heavy metals(as Pb)
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<=0.003%
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