Acid Of Phosphorus

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Phosphoric acid

acid of phosphorus Description:

Phosphoric acid, also known as ortho phosphoric acid, has a purity of 75% and 85% for general commercial phosphoric acid. The purity of exported phosphoric acid is above 85%. There are two grades, one is industrial phosphoric acid; Another is consuming phosphoric acid.

acid of phosphorus Use:

Chemical industry: Phosphoric acid is one of the raw materials for preparing organic phosphorus compounds, phosphates, and polyphosphates. These compounds play important roles in suspension stabilizers, moisturizers, mold inhibitors, preservatives, and other applications.

China standard:

GB/T2091-92 "Industrial Phosphoric Acid"

GB3149-92 "Food Additive Phosphoric Acid"

International standard:

ISO848:1981 "Industrial phosphate - Determination of calcium content - Titration method"

ISO849:1968 "Industrial phosphoric acid - Determination of iron content -2,2 '- Bipyridine spectrophotometric method"

ISO2997:1974 "Determination of content of phosphoric acid sulfate for industrial use - Reduction and titration methods"

ISO3359:1975 "Industrial phosphoric acid - Determination of arsenic content - Silver diethylthiocarbamate photometric method"

ISO3360:1976 "Phosphoric acid and sodium phosphate for industrial use (including food industry) - Determination of fluoride content - Alizarin complexone and lanthanum nitrate photometric method"

ISO3361:1975 "Phosphoric acid for industrial use - Determination of soluble silica content - Reduced molybdate silicate spectrophotometric method" ISO3706:1976 "Phosphoric acid for industrial use (including food industry) - Determination of total phosphorus (V) oxide content - Quinoline phosphomolybdate gravimetric method"

ISO3707:1976 "Determination of Phosphate Calcium Content for Industrial (including Food Industry) Use - Flame Atomic Absorption Method"

ISO3708:1976 "Determination of content of phosphoric acid chloride for industrial use (including food industry) - Potentiometric titration method"

ISO3709:1976 "Determination of phosphoric acid nitrogen oxide content for industrial use (including food industry) -3,4-dimethylphenol spectrophotometric method"

ISO6678:1981 "Industrial phosphoric acid - Determination of lead content - Atomic absorption spectrophotometric method"

ISO7099:1983 "Determination of hydrogen sulfide content in phosphoric acid for industrial use (including food industry) - Titration method"

ISO7100:1983 "Determination of Vanadium Content in Phosphoric Acid for Industrial Use (including Food Industry) - Phosphotungstate Vanadate spectrophotometric method"

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