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Significance and Use
Calcium fluoride is available in nature in various forms and purities. A major use for it is in the manufacture of hydrofluoric acid. The test methods listed in 1.1 provide procedures for analyzing calcium fluoride to determine whether it is suitable for this use.
1.1 These test methods cover the chemical analyses of acid-grade calcium fluoride (fluorspar). These test methods appear in the following sections:
|Volatiles as Moisture||6-13|
|Assay as Calcium Fluoride (CaF 2)||23-32|
|Soluble Chloride as NaC1||33-50|
|Mixed Oxides (R2O3)||79-87|
1.2 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.
1.3 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.
1.4 Review the current Material Safety Data Sheet (MSDS) for each chemical used in this standard for detailed information concerning toxicity, first-aid procedures, handling, and safety precautions.
6.1 This test method covers the determination of volatiles as percent moisture.
14.1 This test method covers the determination of percent silica.
23.1 This test method covers the determination of assay as percent calcium fluoride (CaF2).
51.1 This test method covers the determination of calcium carbonate in the range from 0 to 2 %.
60.1 This test method covers the determination of total phosphorus.
70.1 This test method covers the determination of total arsenic.
79.1 This test method covers the determination of percent mixed oxides (R2O3).
88.1 This test method covers the determination of sulfide sulfur in the range from 0.001 to 0.2 %.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
E300 Practice for Sampling Industrial Chemicals
ICS Number Code 71.060.50 (Salts)
UNSPSC Code 12352302(Inorganic metal salts)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM E1506-08, Standard Test Methods for Analysis of Acid-Grade Calcium Fluoride (Fluorspar), ASTM International, West Conshohocken, PA, 2008, www.astm.orgBack to Top