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. It suits colleges, universities, analytical labs and chemical stockrooms that need acidification, pH adjustment, buffer preparation or phosphate chemistry. Buyers can obtain it through Science Lab Supplies, a laboratory chemicals supplier in India working from Ambala with institutions, tender contractors and distributors.
Specifications
Every figure for the 85% acid, from CAS number to molecular weight, sits in the table below. In short, it is phosphoric acid (orthophosphoric acid), CAS 7664-38-2, a corrosive concentrate that is diluted before use by adding acid slowly to water. Grade, pack size and batch details are stated on the quotation and container label.
| Specification | 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 |
| Class | Inorganic acid reagent |
| Hazard | Corrosive |
| Dilution | Add acid to water slowly, never water to acid |
| Storage | Tightly closed compatible container in a cool, dry, well-ventilated acid store |
| Keep apart from | Strong bases and reactive metals |
| Label | Batch, grade and hazard information |
| Document supplied | Safety Data Sheet |
| Outer packing | Tamper-sealed |
| Pack size | Confirmed on the quotation |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for Ortho Phosphoric Acid 85%
Phosphoric acid is a mineral acid that laboratories can use to acidify solutions, adjust pH, prepare phosphate buffers and demonstrate phosphate chemistry. Diluted under supervision, it also suits titration methods that name it and training on the safe handling of corrosive acids.
- B.Sc. analytical chemistry: acidifying the medium in redox titrations where the method specifies phosphoric acid.
- Analytical and pharmacy labs: preparing phosphate buffers in a borosilicate Volumetric Flask 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, with disposable Gloves - Protective worn and an Eye Wash Station with two 1000 ml saline bottles close by.
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, compatible container labelled with batch, grade and hazard information, and it travels with its Safety Data Sheet in tamper-sealed outer packing with export documentation. Pack volume is fixed on the quotation, and dispensers or protective equipment can be added to it.
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, alkalis 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). Acid orders can begin in the enquiry cart, questions about grade go to the contact page, and tender buyers will find the process on 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%?
Colleges, analytical labs, research institutes, contractors and distributors receive quotations for this acid from Science Lab Supplies in Ambala, India, with the pack size, grade and batch details stated for each order.
Related Acids, Alkalis and Measuring Equipment
These items cover the neutralisation, phosphate-test, end-point and pH work that goes with a concentrated acid: reagents from the Lab Chemicals range, plus a bench pH meter and a rubber apron from the Chemistry Lab range. All of them can be listed on one quotation with Ortho Phosphoric Acid 85%.
- Nitric Acid — corrosive inorganic acid for nitrate chemistry, oxidation and acid-base work.
- Ammonium Molybdate — molybdate salt reagent for phosphate-related qualitative work.
- Sodium Hydroxide Flakes — strong alkali for neutralisation and controlled solution preparation.
- Potassium Hydroxide Flakes — strong inorganic alkali for titration work and pH adjustment.
- Phenolphthalein Solution Indicator — acid-base indicator for titration endpoint detection.
- Bench pH Meter — 0-14 pH range with 0.01 pH resolution and an 18 mm LCD.
- Apron for Chem lab — rubber apron, size L, with a neck loop, waist ties and a waterproof surface.
Browse the full Lab Chemicals range, the Chemistry Lab range, or all school lab equipment.
Last updated: 22 October 2026
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