Product: Caustic Soda Liquor 10%
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Specification No: CAU010
Appearance: Virtually clear colourless liquid
Sodium Hydroxide (NaOH) % w/w 9 – 11
Sodium Chloride (NaCl) ppm max 100
Sodium Carbonate (Na2CO3) % w/w max 0.1
Sodium Chlorate (NaClO3) ppm max 65
Sodium Sulphate (Na2SO4) ppm max 150
Iron (Fe) ppm max 5
Cadmium (Cd) ppm max 0.01
Mercury (Hg) ppm max 0.1
Heavy Metals (as Pb) ppm max 10
Product: Caustic Soda Liquor 25% Membrane Grade
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Specification No: CAU004
Appearance: Colourless, clear to slightly turbid liquid.
Sodium Hydroxide (NaOH) % w/w 24.0 – 26.0
Sodium Carbonate (Na2CO3) % w/w max 0.1
Sodium Chloride (NaCl) ppm max 60
Sodium Sulphate (Na2SO4) ppm max 40
Sodium Chlorate (NaClO3) ppm max 15
Iron (Fe) ppm max 10
Product: Caustic Soda Liquor 25% Rayon
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Specification No: CAU011
This product conforms to BS EN 896 (Type 2), Commission Directive 2008/84/EC (E524) and the Food Chemicals Codex, VII.
(It cannot be assumed that Caustic Soda meeting the test requirements of the Food Chemicals Codex is satisfactory for all food or food related applications without an assessment against appropriate regulations by the user.)
Appearance: Colourless, clear to slightly turbid liquid
Specific gravity at 20°C 1.278 ± 0.01
Sodium Hydroxide NaOH % w/w 24.0 – 26.0
Sodium Carbonate (Na2CO3) % w/w max 0.2
Sodium Chloride (NaCl) % w/w max 0.01
Sodium Sulphate (Na2SO4) % w/w max 0.01
Arsenic (As) mg/kg max 5.0
Cadmium (Cd) mg/kg max 2.5
Chromium (Cr) mg/kg max 2.5
Iron (Fe) mg/kg max 5.0
Mercury (Hg) mg/kg max 0.5
Nickel (Ni) mg/kg max 5.0
Lead (Pb) mg/kg max 5.0
Antimony (Sb) mg/kg max 2.5
Selenium (Se) mg/kg max 2.5
Heavy Metals (as Pb) mg/kg max 10.0
Product: Caustic Soda Liquor 32% Membrane Grade
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Specification No: CAU001
Appearance Colourless, clear to slightly turbid liquid.
Sodium Hydroxide (NaOH) % w/w 31.0 – 33.0
Sodium Carbonate (Na2CO3) % w/w max 0.2
Sodium Chloride (NaCl) ppm max 100
Sodium Chlorate (NaClO3) ppm max 65
Sodium Sulphate (Na2SO4) ppm max 100
Arsenic (As) ppm max 1.0
Cadmium (Cd) ppm max 0.5
Chromium ppm max 0.5
Iron (Fe) ppm max 10
Lead (Pb) ppm max 0.25
Mercury (Hg) ppm max 0.05
Nickel (Ni) ppm max 1.0
Antimony (Sb) ppm max 2.5
Selenium (Se) ppm max 2.5
Product: Caustic Soda Liquor 47% Membrane Grade
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Specification No: CAU002M
Appearance: Colourless, clear to slightly turbid liquid.
Sodium Hydroxide (NaOH) % w/w 46.0 – 48.0
Sodium Carbonate (Na2CO3) ppm max 1000
Sodium Chloride (NaCl) ppm max 100
Sodium Chlorate (NaClO3) ppm max 60
Sodium Sulphate (Na2SO4) ppm max 100
*Arsenic (As) ppm max 1.0
*Cadmium (Cd) ppm max 0.5
*Chromium ppm max 0.5
*Iron (Fe) ppm max 5.0
*Lead (Pb) ppm max 1.0
*Mercury (Hg) ppm max 0.05
*Nickel (Ni) ppm max 1.0
*Antimony (Sb) ppm max 2.5
*Selenium (Se) ppm max 2.5
*Conforms to the test requirements of EN896 Type 1 and Food Chemicals Codex Vol V.
It cannot be assumed that Caustic Soda meeting the test requirements of the Food Chemicals Codex Vol V is satisfactory for all food or food related applications without an assessment against appropriate regulations by the user.
Product: Caustic Soda Liquor 50% Membrane Grade
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Specification No: CAU006M
Appearance: Colourless, clear to slightly turbid liquid.
Sodium Hydroxide (NaOH) % w/w 49.9
Sodium Carbonate (Na2CO3) % w/w max 0.3
Sodium Chloride (NaCl) ppm max 50
Sodium Sulphate (Na2SO4) ppm max 35
Aluminium (Al) ppm max 0.2
Antimony (Sb) ppm max 2.0
Cadmium (Cd) ppm max 0.1
Chromium ppm max 0.5
Copper (Cu) ppm max 0.1
Fluoride (F) ppm max 0.1
Iron (Fe) ppm max 2.0
Lead (Pb) ppm max 0.1
Manganese (Mg) ppm max 1.0
Mercury (Hg) ppm max less than test method limit
Nickel (Ni) ppm max 1.0
Selenium (Se) ppm max 4.0
Zinc (Zn) ppm max 0.1
Heavy metals as (Pb) ppm max 10.0
Nexchem Ltd are distributors of Caustic Soda Liquor 32%.