Harcros Caustic Soda 50% Diaphragm

Harcros Caustic Soda 50% Diaphragm is a liquid chemical used in acid neutralization processes. It is supplied in a liquid form.

Chemical Name: Sodium Hydroxide

CAS Number: 1310-73-2

Chemical Family: Alkalis, Bases, Hydroxides

Synonyms: Caustic Soda, NaOH, Soda Lye, Sodium Hydrate, White Caustic

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Enhanced TDS

Identification & Functionality

Applications & Uses

Properties

Physical Form
Sales Specifications
ValueUnitsTest Method / Conditions
Total Alkalinity38.00 - 39.60wt%-
Hydroxide Alkalinity49.00 - 51.00wt%-
Sodium Carbonate (as Na₂CO₃)max. 0.20wt%-
Sodium Chloride (as NaCl)max. 1.10wt%-
Sodium Chloratemax. 0.30wt%-
Sodium Sulfate (as Na₂SO₄)max. 0.075wt%-
Iron Contentmax. 9.0ppm wt-
Coppermax. 0.30ppm wt-
Nickel Contentmax. 3.00ppm wt-
Typical Properties
ValueUnitsTest Method / Conditions
Sodium Hydroxide49.0 - 52.0wt %-
Sodium Oxide38.0 - 40.4wt %-
Sodium Chloridemax. 12wt %-
Ironmax. 9.0ppm-
Sodium Sulfatemax. 750ppm-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Volatile Organic Compound0%-
Relative Density20°C-
Relative Density1.49 - 1.53g/cm³-
Boiling Point138 - 143°C-
pH20°C-
pHmin. 14--
Vapor Pressure (approx. 50%)20 - 25mmHg-
Viscosity Temperature30°C-
Viscocity (approx. 50%)40cPs-
Freezing Point7 - 12°C-
Vapor Pressure70°C-
AppearanceClear--
ColorColorless--
Physical StateLiquid--
Explosive LimitsNot explosive--
Oxidising PropertiesNot oxidizing--
OdorOdorless--
Soluble inWater--

Regulatory & Compliance

Packaging & Availability