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CAS No 7664-38-2 , phosphoric acid

  • Name: phosphoric acid
  • Synonyms: Sonac; Acide phosphorique;ORTHOPHOSPHORIC ACID; Wc-reiniger; Evits; Phosphorsaeure; Acidum phosphoricum; 7664-38-2;phosphoric acid;
  • CAS Registry Number:
  • Transport: UN 1805
  • Melting Point: 21 ºC
  • Boiling Point: 158 ºC
  • Density: 1.685
  • Refractive index: 20/D 1.433
  • Water Solubility: MISCIBLE
  • Safety Statements: R34
  • Hazard Symbols: C: Corrosive;
  • EINECS: 231-633-2
  • Molecular Weight: 97.995182
  • InchiKey: NBIIXXVUZAFLBC-UHFFFAOYSA-N
  • InChI: InChI=1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
  • Risk Statements: S26;S45
  • Molecular Formula: H3O4P
  • Molecular Structure:CAS No:7664-38-2 phosphoric acid
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7664-38-2 phosphoric acid

7664-38-2 Phosphorous acid

  • 1. Property of phosphorous acid It is in Colorless, transparent and syrupy liquid or rhombic crystalline; It is odorless and tastes very sour; its melting point is 42.35°C and when heated to 300°C it will become into meta phosphoric acid; its relativ...
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  • China Jinan Shijitongda Chemical Co.,Ltd [Trading Company]
  • Tel: 86-0531-85917598
  • Address: Room 809, Sanlian Business Center, No. 409, Beiyuan AV., Tianqiao District, Jinan, jinan,ShandongChina
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7664-38-2 Phosphoric Acid

  • Phosphoric Acid 75-85% Synonym Orthophosphoric acid M.F H3PO4 CAS No. 7664-38-2 Phosphoric acid Specification Test/Property Specification Appearance Colorless viscous liquid Assay (H3PO4) 85.0% Min Fluoride (F) 0.001% Max Chloride (Cl) 0.0005% Max Su...
  • Min. Order: 10
  • China Shanghai Pengkai Chemical Co.,Ltd. [Manufacturer]
  • Tel: 86-21-60526671
  • Fax: 86-21-64202353
  • Address: No.4226 Duzhuang Rd., Shanghai,ShanghaiChina

7664-38-2 Phosphoric acid 75/85 food grade

  • Phosphoric Acid Product name: Phosphoric acid Synonym Orthophosphoric acid M.F H3PO4 CAS No. 7664-38-2 EINECS 231-633-2 M.W 97.99g/mol Specific Gravity @ 25 C 1.685g/ml (85% solution) Phosphoric acid Specification Test/Property Specification Appearan...
  • Min. Order: 1000
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  • China Shanghai Pengkai Chemical Co.,Ltd [Manufacturer]
  • Tel: 86-21-60516201
  • Address: No. 4226 Duzhuang Rd., Shanghai, China Shanghai,ShanghaiChina
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7664-38-2 Phosphoric acid

  • United States HBCChem, Inc. [Manufacturers]
  • Tel: +1-510-219-6317
  • Fax: +1-510-675-0318
  • Address: Union City,CaliforniaUnited States
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7664-38-2 Hi, we Can supply Phosphoric acid food grade 7664-38-2 85% best product

  • FOOD Phosphoric acid manufacturers china 7664-38-2 Molecular Formular: H3PO4 Spec.: Items Index Assay (H3PO4) : 75%Min 81%Min 85Min Heavy Metal (As Pb) : 0.0005%Max 0.0005%Max 0.0005%Max Arsenic (as As): 0.00005%Max 0.00005%Max 0.00005%Max Fluoride (...
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  • China Jinan Shijitongda Chemical Co.,Ltd. [Trading Company]
  • Tel: 86-531-85917598
  • Address: Beiyuan Strict Jinan ,ShandongChina
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7664-38-2 PHOSPHORIC ACID 85 %

  • United States Bromorganics Corporation [Manufacturer]
  • Tel: 847-238-9588
  • Fax: 847-238-9688
  • Address: Bromorganics Corporation
    P. O. Box 722
    Elk Grove Village, Illinois 60009 ,United States
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7664-38-2 Phosphoric acid

  • Hong kong ADVANCED TECH. & IND. CO., LTD. [Distributor/Wholesaler]
  • Tel: 86-23902293
  • Fax: 86-27898314
  • Address: UNIT B, 1/F, CHEONG SHING IND. BLDG., 17 WALNUT ST., TAI KOK TSUI, KLN, HONG KONG Hong Kong,nilHong kong
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7664-38-2 Phosphoric Acid (Edible)

  • China Goly Chemical Co., Ltd. [Manufacturers]
  • Tel: +86-(632)-6163187
  • Fax: +86-(632)-5100028
  • Address: Room No.6.Building21 LongXingBeiLi,ShiZhong, ZaoZhua, ShanDong 277102, ZaoZhuang,ShanDongChina
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7664-38-2 Phosphoric acid

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References of phosphoric acid
Title: Phosphoric Acid
CAS Registry Number: 7664-38-2
Synonyms: Orthophosphoric acid
Molecular Formula: H3O4P
Molecular Weight: 98.00
Percent Composition: H 3.09%, O 65.30%, P 31.61%
Line Formula: H3PO4
Literature References: Obtained commercially from phosphate rock deposits in Florida, Tennessee, and the Western United States. Phosphate rock is essentially tricalcium phosphate and one of the large scale processes is based on the equation: Ca3(PO4)2 + 3H2SO4 + 6H2O ? 2H3PO4 + 3(CaSO4.2H2O). Description of various processes: W. H. Waggaman, Phosphoric Acid, Phosphates and Phosphatic Fertilizers (Reinhold, New York, 1952); Phosphoric Acid Vol. 1, parts I, II, A. V. Slack, Ed. (Dekker, New York, 1968) 1159 pp; Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 628-639. Prepn of ultrapure, cryst H3PO4: Simon, Schulze, Z. Anorg. Allg. Chem. 242, 322 (1939); Weber, King, Inorg. Synth. 1, 101 (1939). Reviews: J. R. Van Wazer, Phosphorus and Its Compounds Vol. 1, Chemistry (Interscience, New York, 1958) pp 479-491; R. B. Hudson et al., "Phosphoric Acids and Phosphates" in Kirk-Othmer Encyclopedia of Chemical Technology Vol. 17 (Wiley-Interscience, New York, 3rd ed., 1982) pp 426-472.
Properties: Unstable, orthorhombic crystals, mp 42.35°, or clear, syrupy liquid; easily supercooled into a glass. Pleasing acid taste when suitably diluted. An acid containing ~88% H3PO4 will frequently crystallize on prolonged cooling; forms hemihydrate, mp 29.32°. Becomes anhydr at 150°, gradually changes to pyrophosphoric acid at ~200°, and changes to metaphosphoric acid when heated above 300°. The hot concd acid attacks porcelain and granite ware. May be stored in suitable stainless steel containers. Tribasic acid: pK1: 2.15; pK2: 7.09; pK3: 12.32. Other reported values of dissociation constants and viscosity data reviewed by Van Wazer. The pH of a 0.1N aq soln is 1.5. Heat of formation (crystals): -306.2 kcal/mole. Heat of soln: +2.79 kcal/mole. Sol in water, alc; sol in 8 vols of a 3:1 ether: alcohol mixture. Properties of phosphoric acid solns. d25 1.8741 (100% soln); 1.6850 (85% soln); 1.3334 (50% soln); 1.0523 (10% soln). Density measurements: Christensen, Reed, Ind. Eng. Chem. 47, 1277 (1950); Egan, Luff, ibid. 1280. nD17.5 1.34203 (10% soln); 1.35032 (20% soln); 1.35846 (30% soln). Spec heat (21.3°): 0.4359 (88% soln).
Melting point: mp 42.35°; mp 29.32°
pKa: pK1: 2.15; pK2: 7.09; pK3: 12.32
Index of refraction: nD17.5 1.34203 (10% soln); 1.35032 (20% soln); 1.35846 (30% soln)
Density: d25 1.8741 (100% soln); 1.6850 (85% soln); 1.3334 (50% soln); 1.0523 (10% soln)
CAUTION: Potential symptoms of overexposure are irritation of upper respiratory system, eyes and skin; burns skin and eyes; dermatitis. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 254.
Use: In the manuf of superphosphates for fertilizers, other phosphate salts, polyphosphates, detergents. Acid catalyst in making ethylene, purifying hydrogen peroxide. As acidulant and flavor, synergistic antioxidant and sequestrant in food. Pharmaceutic aid (solvent). In dental cements; process engraving; rustproofing of metals before painting; coagulating rubber latex; as analytical reagent.
Therap-Cat-Vet: Has been used in lead poisoning.