Ortho Phosphoric Acid 85%
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Product Code : SCL-LC-12168
Ortho Phosphoric Acid 85% (SKU SCL-LC-12168) is concentrated orthophosphoric acid, H3PO4, at 85% strength, offered as an inorganic acid reagent for authorised chemistry, analytical and research laboratories. Colleges, universities, analytical labs and chemical stockrooms use it for acidification, pH adjustment, buffer preparation and phosphate chemistry. Science Lab Supplies, a laboratory chemicals supplier in India, provides it from Ambala to institutions, tender contractors and distributors.
Specifications
The product is phosphoric acid (orthophosphoric acid) at 85% concentration, CAS 7664-38-2, with a molecular weight of about 98.0 g/mol. It is a corrosive, concentrated acid that is normally diluted before use. Grade, pack size and batch details are stated on the quotation and container label.
| Parameter | Value |
|---|---|
| SKU | SCL-LC-12168 |
| Other name | Phosphoric acid |
| Concentration | 85% |
| CAS number | 7664-38-2 |
| Formula | H3PO4 |
| Molecular weight | About 97.995 g/mol |
| Hazard | Corrosive |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for Ortho Phosphoric Acid 85%
Phosphoric acid is a triprotic mineral acid, so laboratories use it to acidify solutions, adjust pH, prepare phosphate buffers and demonstrate phosphate chemistry. Diluted under supervision, it also appears in titration methods where the analytical procedure names it, and in training on handling corrosive acids.
- B.Sc. analytical chemistry: acidifying the medium in redox titrations where the method specifies phosphoric acid.
- B.Pharm and analytical labs: preparing phosphate buffers and adjusting pH.
- Class 11–12 chemistry: teacher-led discussion of polyprotic acids and phosphate salts.
- Stockroom training on diluting, labelling and storing concentrated acids.
Wear gloves, goggles and a lab coat, and always add acid slowly to water, never water to acid. Keep it away from strong bases and reactive metals. Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted.
Standard Scope of Supply
Ortho Phosphoric Acid 85% is packed in a sealed, acid-compatible container labelled with batch, grade and hazard information, and it ships with its Safety Data Sheet in tamper-sealed outer packing. Pack volume is fixed on the quotation; dispensers and protective equipment are not included.
Packing, MOQ and Lead Time
Request one bottle or a department's stock; the quotation will show the pack size, the packing used for corrosive liquids, the delivery time and the price. Other acids and salts for your chemistry lab can be placed on the same enquiry.
With an Importer-Exporter Code as a registered exporter, Science Lab Supplies is able to ship to buyers in Ghana, Ethiopia, Tanzania, Uganda, the UAE and Saudi Arabia, following the transport rules for corrosive goods. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Start with the enquiry cart or the contact page, and tender buyers can refer to the lab tender page.
Frequently Asked Questions
What is Ortho Phosphoric Acid 85% used for?
It is a concentrated inorganic acid for authorised laboratories, used to acidify solutions, adjust pH, prepare phosphate buffers and carry out analytical methods that specify phosphoric acid.
What are its CAS number and formula?
Orthophosphoric acid has CAS number 7664-38-2 and the formula H3PO4. This product is the 85% concentration, with a molecular weight of about 98.0 g/mol.
Is 85% phosphoric acid dangerous to handle?
Yes, it is corrosive to skin and eyes. Use gloves and eye protection, dilute by adding acid to water, keep it from bases and reactive metals, and let only trained staff handle the concentrate.
Who supplies Ortho Phosphoric Acid 85%?
Science Lab Supplies, from its base in Ambala, India, supplies this acid and quotes colleges, analytical labs, research institutes, contractors and distributors with pack size and batch details.
Related Laboratory Chemicals
Phosphoric acid is usually bought with the other acids, alkalis and phosphate-test reagents that a chemistry or analytical lab uses each term. These four chemicals from the Lab Chemicals range can be quoted with it in one order.
- Nitric Acid — mineral acid for the same acid store.
- Ammonium Molybdate — reagent used in phosphate tests.
- Sodium Hydroxide Flakes — alkali for neutralisation and buffer work.
- Oxalic Acid — organic acid for titration practicals.
Browse the full Lab Chemicals range or all school lab equipment.
Last updated: 25 September 2026
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