ASTM E291-96

Standard Test Methods for Chemical Analysis of Caustic Soda and Caustic Potash (Sodium Hydroxide and Potassium Hydroxide)

STANDARD published on 10.10.2001

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The information about the standard:

Designation standards: ASTM E291-96
Note: WITHDRAWN
Publication date standards: 10.10.2001
SKU: NS-46252
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM E291-96 :

Keywords:

caustic soda, caustic potash, chloride, iron, potassium carbonate, potassium hydroxide, sodium carbonate, sodium hydroxide, sulfate, total alkalinity, ICS Number Code 71.060.40 (Bases)

Additional information

1. Scope

1.1 These test methods cover only the analyses usually required on the following commercial products:

1.1.1 Caustic soda (sodium hydroxide), 50 and 73 % liquors; anhydrous (solid, flake, ground, or powdered), and

1.1.2 Caustic potash (potassium hydroxide), 45 % liquor; anhydrous (solid, flake, ground, or powdered).

1.2 The analytical procedures appear in the following order:

Alkalinity (Total), Titrimetric (for 50 to 100 %NaOH and 45 to 100 % KOH)	8 to 14
Carbonate, Gas-Volumetric (0.001 g CO 2, min)	15 to 24
Carbonate, Gravimetric (0.001 g CO 2, min)	25 to 33
Chloride, Titrimetric, (0.001 g Cl , min)	34 to 40
Chloride, Potentiometric Titration (0.3 to 1.2 %)	41 to 47
Chloride, Ion Selective Electrode (0.6 to 120 ppm)	48 to 55
Iron, Photometric (0.005 mg Fe, min)	56 to 64
Sulfate, Gravimetric, (0.002 g SO 3, min)	65 to 71
Keywords	72

1.3 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are provided for information only.

1.4 Review the current Material Safety Data Sheet (MSDS) for detailed information concerning toxicity, first-aid procedures, handling, and safety precautions.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 6.

2. Referenced Documents

E60-11(2022)e1	Standard Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry (Includes all amendments and changes 6/29/2022).
E180-03	Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009)
E200-23	Standard Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
D1193-06(2018)	Standard Specification for Reagent Water

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