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Phosphoric acid

CAS 7664-38-2: Phosphoric acid

Description:Phosphoric acid, with the CAS number 7664-38-2, is a colorless, odorless, and viscous liquid that is highly soluble in water. It is a triprotic acid, meaning it can donate three protons (H⁺ ions) in aqueous solutions, resulting in a pH that can vary significantly depending on concentration. Phosphoric acid is commonly used in fertilizers, food flavoring, and as a rust remover due to its ability to react with metal oxides. It has a relatively low toxicity compared to other acids, but it can still cause irritation to the skin, eyes, and respiratory tract upon contact. The substance is hygroscopic, meaning it can absorb moisture from the air, and it has a high boiling point relative to many other acids. In terms of chemical reactivity, phosphoric acid can participate in various reactions, including esterification and neutralization, making it a versatile compound in both industrial and laboratory settings. Its ability to form phosphates is crucial in biological systems, particularly in energy transfer processes like ATP.

Formula:H3PO4

InChI:InChI=1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)

InChI key:InChIKey=NBIIXXVUZAFLBC-UHFFFAOYSA-N

SMILES:O=P(O)(O)O

  • Synonyms:
  • 3M Etching Liquid
  • Acide orthophosphorique
  • Acide phosphorique
  • Acidic Phosphates
  • Acido Ortofosforico
  • Acido fosforico
  • Acidum phosphoricum
  • Amberphos 54
  • Anhydrous phosphoric acid
  • C 134
  • See more synonyms
  • C 134 (acid)
  • C 434
  • C 434 (acid)
  • Conditioner 36
  • Decon 4512
  • E 338
  • EVITs
  • Etchalite
  • Fosforsyre
  • Hq 54
  • K Etchant Gel
  • K-etchant
  • Kefo
  • Kerr Etchant
  • Mikro Klene DF
  • Nsc 80804
  • Orthophosphoric Acid
  • Orthophosphorsaure
  • Panavia Etching Agent
  • Pc 400
  • Phosphoric Acid AR
  • Phosphorsaeure Ueber 10% Bis 20%
  • Phosphorsaeure Ueber 20%
  • Phosphorsaeure Ueber 5% Bis 10%
  • Phosphorsaeure Unter Und Bis 5%
  • Phosphorsäure
  • SF 1 (acid)
  • SPA 2 (catalyst)
  • Sonac
  • Spa 2
  • Tg 434
  • Total Etch
  • Ultra-Etch Gel
  • Ultradent
  • Ultraetch
  • Un3453
  • Uni-Etch
  • Vococid
  • WC-Reiniger
  • Y 11A06
  • orthophosphoric acid H3O4P
  • リン酸
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products per page. Found 23 products.

BrandProduct dataPurityPrice rangeEstimated delivery
TCI logo
Phosphoric Acid
REF: 3B-P1745CAS: 7664-38-2 		- - -39.00 €Mon 21 Apr 25
Alfa Aesar By Thermo Fisher Scientific logo
Phosphoric acid, 85% aq. soln.
REF: 02-A18067CAS: 7664-38-2 		85%43.00 €~395.00 €Tue 22 Apr 25
Alfa Aesar By Thermo Fisher Scientific logo
Phosphoric acid, 85% w/w aq. soln., ACS, Thermo Scientific™
REF: 02-033266CAS: 7664-38-2 		85%48.00 €~179.00 €Tue 22 Apr 25
USP logo
Phosphoric Acid
REF: 45-1535802CAS: 7664-38-2 		- - -419.00 €Fri 25 Apr 25
Strem logo
Phosphoric acid (ACS), 85%
REF: 08-93-1541CAS: 7664-38-2 		85%85.00 €Tue 29 Apr 25
Glentham logo
Phosphoric acid 75%
REF: 7W-GK7773CAS: 7664-38-2 		- - -To inquireTue 29 Apr 25
Glentham logo
Phosphoric acid 85%
REF: 7W-GK4212CAS: 7664-38-2 		84.5 - 85.5 % (H3PO4)42.00 €~138.00 €Tue 29 Apr 25
TLC logo
Phosphoric Acid
REF: 4Z-P-835CAS: 7664-38-2 		- - -To inquireTue 29 Apr 25
Cluzeau logo
Phosphoric Acid-d3(85% w/w in D2O)
REF: 3U-D0616CAS:
99 atom % DTo inquireMon 28 Apr 25
Acros logo
Hexafluorophosphoric acid, 60 wt.% solution in water
REF: AC-19111CAS:
- - -34.00 €~91.00 €Tue 29 Apr 25
Acros logo
Phosphoric acid, for analysis, 85 wt% solution in water
REF: AC-20114CAS:
- - -To inquireTue 29 Apr 25
Acros logo
Diethyl phosphate, 96%
REF: AC-40742CAS:
96%112.00 €Tue 29 Apr 25
Acros logo
Phosphoric acid, pure
REF: AC-38902CAS: 7664-38-2 		- - -26.00 €~133.00 €Tue 29 Apr 25
Acros logo
Phosphoric acid, extra pure, 85% solution in water
REF: AC-29570CAS:
85%To inquireTue 29 Apr 25
Acros logo
Phosphoric acid, ACS reagent, 85+% solution in water
REF: AC-42404CAS:
85+%57.00 €~459.00 €Tue 29 Apr 25
Acros logo
Phosphoric acid, for HPLC
REF: AC-46386CAS: 7664-38-2 		- - -29.00 €~65.00 €Tue 29 Apr 25
TRC logo
Folin and Ciocalteu's Phenol Reagent (Technical Grade)
REF: TR-F680330CAS:
- - -92.00 €~818.00 €Tue 06 May 25
TRC logo
Phosphoric Acid
REF: TR-P359200CAS: 7664-38-2 		- - -107.00 €~392.00 €Tue 06 May 25
Biosynth logo
Phosphoric acid - 75%
REF: 3D-FP176126CAS: 7664-38-2 		Min. 95%- - -Discontinued product
Sisco Research Laboratories logo
Orthophosphoric Acid extrapure, 85%
REF: SR-36678CAS: 7664-38-2 		min. 85%- - -Discontinued product
discount label
Phosphoric Acid
TCI logo
+ info

Phosphoric Acid

CAS:7664-38-2
Formula:
H3PO4
Color and Shape:
Colorless clear liquid
Molecular weight:
97.99

Ref: 3B-P1745

300ml39.00 €
Estimated delivery in United States, on Monday 21 Apr 2025
+ info
discount label
Phosphoric acid, 85% aq. soln.
Alfa Aesar By Thermo Fisher Scientific logo
+ info

Phosphoric acid, 85% aq. soln.

CAS:7664-38-2
Phosphoric acid is used mainly in fertilizers. It is used as an external standard for …
Formula:
H3O4P
Purity:
85%
Color and Shape:
Clear colorless, Viscous liquid or low-melting solid
Molecular weight:
97.99

Ref: 02-A18067

10l395.00 €
500ml43.00 €
2500ml125.00 €
Estimated delivery in United States, on Tuesday 22 Apr 2025
+ info
discount label
Phosphoric acid, 85% w/w aq. soln., ACS, Thermo Scientific™
Alfa Aesar By Thermo Fisher Scientific logo
+ info

Phosphoric acid, 85% w/w aq. soln., ACS, Thermo Scientific™

CAS:7664-38-2
Phosphoric acid is used mainly in fertilizers. It is used as an external standard for …
Formula:
H3O4P
Purity:
85%
Molecular weight:
97.99

Ref: 02-033266

1kg64.00 €
100g48.00 €
4x1kg179.00 €
Estimated delivery in United States, on Tuesday 22 Apr 2025
+ info
discount label
No image
USP logo
+ info

Phosphoric Acid

CAS:7664-38-2
Phosphoric acid other than fertilizer grade
Formula:
H3PO4
Color and Shape:
Clear Colorless Liquid
Molecular weight:
97.9769

Ref: 45-1535802

3x1.5ml419.00 €
Estimated delivery in United States, on Friday 25 Apr 2025
+ info
discount label
Phosphoric acid (ACS), 85%
Strem logo
+ info

Phosphoric acid (ACS), 85%

CAS:7664-38-2
Formula:
H3PO4
Purity:
85%
Color and Shape:
colorless liq.
Molecular weight:
98.00

Ref: 08-93-1541

1kg85.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Phosphoric acid 75%
Glentham logo
+ info

Phosphoric acid 75%

CAS:7664-38-2
Formula:
H3O4P
Color and Shape:
Clear, colourless liquid
Molecular weight:
98.00

Ref: 7W-GK7773

Undefined sizeTo inquire
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Phosphoric acid 85%
Glentham logo
+ info

Phosphoric acid 85%

CAS:7664-38-2
Formula:
H3O4P
Purity:
84.5 - 85.5 % (H3PO4)
Color and Shape:
Clear, colourless liquid
Molecular weight:
98.00

Ref: 7W-GK4212

1kg42.00 €
5kg83.00 €
10kg138.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Phosphoric Acid
TLC logo
+ info

Phosphoric Acid

CAS:7664-38-2
Formula:
H3O4P
Color and Shape:
Colorless Crystalline Solid
Molecular weight:
97.99

Ref: 4Z-P-835

5mgTo inquire
10mgTo inquire
25mgTo inquire
50mgTo inquire
100mgTo inquire
Estimated delivery in United States, on Tuesday 29 Apr 2025
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discount label
No image
Cluzeau logo
+ info

Phosphoric Acid-d3(85% w/w in D2O)

CAS:14335-33-2 7664-38-2
Formula:
D3PO4D2Osolution
Purity:
99 atom % D
Color and Shape:
Colorless. Viscous Liquid
Molecular weight:
101.01

Ref: 3U-D0616

100g352.00 €
Estimated delivery in United States, on Monday 28 Apr 2025
+ info
discount label
Hexafluorophosphoric acid, 60 wt.% solution in water
Acros logo
+ info

Hexafluorophosphoric acid, 60 wt.% solution in water

CAS:13537-32-1 13779-41-4 16940-81-1 7664-38-27664-39-3 7732-18-5
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
F6HP
Color and Shape:
Colorless to yellow-green, Solution
Molecular weight:
145.97

Ref: AC-19111

25g34.00 €
500g91.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Phosphoric acid, for analysis, 85 wt% solution in water
Acros logo
+ info

Phosphoric acid, for analysis, 85 wt% solution in water

CAS:7664-38-27732-18-5
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
H3O4P
Color and Shape:
Clear viscous liquid
Molecular weight:
97.99

Ref: AC-20114

1l98.00 €
10lTo inquire
500ml58.00 €
2500ml181.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Diethyl phosphate, 96%
Acros logo
+ info

Diethyl phosphate, 96%

CAS:598-02-7 7664-38-2
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
C4H11O4P
Purity:
96%
Color and Shape:
Clear colorless to yellow, Liquid
Molecular weight:
154.10

Ref: AC-40742

5g112.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Phosphoric acid, pure
Acros logo
+ info

Phosphoric acid, pure

CAS:7664-38-2
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
H3O4P
Color and Shape:
Crystalline powder or crystals, White
Molecular weight:
97.99

Ref: AC-38902

100g26.00 €
500g51.00 €
2500g133.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Phosphoric acid, extra pure, 85% solution in water
Acros logo
+ info

Phosphoric acid, extra pure, 85% solution in water

CAS:7664-38-27732-18-5
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
H3O4P
Purity:
85%
Color and Shape:
Clear liquid
Molecular weight:
97.99

Ref: AC-29570

1l91.00 €
10lTo inquire
2500ml175.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Phosphoric acid, ACS reagent, 85+% solution in water
Acros logo
+ info

Phosphoric acid, ACS reagent, 85+% solution in water

CAS:7664-38-27732-18-5
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
H3O4P
Purity:
85+%
Color and Shape:
Clear liquid
Molecular weight:
97.99

Ref: AC-42404

10l459.00 €
500ml57.00 €
2500ml176.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Phosphoric acid, for HPLC
Acros logo
+ info

Phosphoric acid, for HPLC

CAS:7664-38-2
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
H3O4P
Color and Shape:
Viscous liquid, Clear colorless
Molecular weight:
97.99

Ref: AC-46386

100ml29.00 €
500ml65.00 €
Estimated delivery in United States, on Tuesday 29 Apr 2025
+ info
discount label
Folin and Ciocalteu's Phenol Reagent (Technical Grade)
TRC logo
+ info

Folin and Ciocalteu's Phenol Reagent (Technical Grade)

Controlled Product
CAS:10102-40-6 10213-10-2 10377-48-7 7647-01-0 7664-38-27732-18-5
Applications Folin and Ciocalteu's Phenol Reagent, tech. is a compound useful in organic synthesis. Not …
Formula:
C5H12N2O3S
Color and Shape:
Single Solution

Ref: TR-F680330

5ml92.00 €
250ml818.00 €
Estimated delivery in United States, on Tuesday 6 May 2025
+ info
discount label
Phosphoric Acid
TRC logo
+ info

Phosphoric Acid

CAS:7664-38-2
Applications Phosphoric Acid is used in various chemical processes as a phosphorylating compound. It is …
Formula:
H3O4P
Color and Shape:
Neat
Molecular weight:
98.00

Ref: TR-P359200

5g107.00 €
25g227.00 €
50g392.00 €
Estimated delivery in United States, on Tuesday 6 May 2025
+ info
discount label
Phosphoric acid - 75%
Biosynth logo
+ info

Phosphoric acid - 75%

CAS:7664-38-2
Phosphoric acid is a colorless, corrosive, and volatile acid with a pungent odor. It is …
Formula:
H3O4P
Purity:
Min. 95%
Color and Shape:
Clear Colourless Liquid
Molecular weight:
98 g/mol

Ref: 3D-FP176126

Undefined sizeDiscontinuedRequest information
Discontinued product
+ info
discount label
Orthophosphoric Acid extrapure, 85%
Sisco Research Laboratories logo
+ info

Orthophosphoric Acid extrapure, 85%

CAS:7664-38-2
Formula:
H3PO4
Purity:
min. 85%
Color and Shape:
Clear, Colourless, Liquid
Molecular weight:
98.00

Ref: SR-36678

20lDiscontinuedRequest information
500mlDiscontinuedRequest information
2500mlDiscontinuedRequest information
Discontinued product
+ info
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