Phosphoric Acid Ph

Phosphoric acid

Phosphoric Acid PH Introduction:

85% phosphoric acid is a colorless, transparent or slightly light colored, viscous liquid. Melting point 42.35 ℃, specific gravity 1.70, high boiling point acid, can dissolve with water in any ratio. When boiling point 2Chemicalbook 13 ℃ (losing 1/2 water), pyrophosphate is generated. When heated to 300 ℃, it turns into metaphosphate. Relative density 181.834. Easy to dissolve in water, soluble in ethanol.

PH value: 3.06 (1mM solution); 2.26(10mMsolution); 1.63(100mMsolution); Water solubility: MISCRIBLE maximum wavelength (λ max): λ: 260nmAmax: ≤ 0.05 λ: 280nmAmax: ≤ 0.04Merck: 147344BRN: 1921286 Dielectric constant: 61.0 Exposure limit: TLV-TWA1mg/m3 (ACGIH, MSHA, anChemicalbookdOSHA); TLV-STEL3mg/m3 (ACGIH) InchIKey: NBIIXXVUZAFLBC-UHFFFAOYSA-NLogP: -2.15CAS Database: 7664-38-2 (CASDataBaseReference) NIST Chemical Information: Phosphhoracid (7664-38-2) EPA Chemical Information: Phosphhoracid (7664-38-2)

Phosphoric Acid PH use:

Mainly used for the production of chemical fertilizers, detergents, food and feed additives, flame retardants, and various phosphates;

Commonly used as an analytical reagent;

Used for capacity and colorimetric analysis, etc

Phosphoric Acid PH Content analysis:

The phosphoric acid content is calculated using the following formula: H3PO4 (%)=0.04428 x (G2-G1)/G x 50/500 x 20/500 x 100. In the formula, G is the amount of sample taken. Chemicalbook, gG2 is the amount of precipitate obtained during sample determination, g; G1 is the weight of precipitate obtained from blank measurement, g; 0.04428 is the mass of quinoline phosphomolybdate equivalent to phosphoric acid per gram, g.

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