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Nitric Acid (Conc)
Nitric Acid (Conc) (Product Code: SCL406/0113) is concentrated nitric acid of analytical reagent grade used for the xanthoproteic protein test and other staff-supervised tests in biology and chemistry laboratories. School and college departments stock it in a 500 ml pack with an MSDS, mainly to show students that proteins containing ring-structured amino acids turn yellow with the acid. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, to school chemistry and biology labs.
Specifications
| Parameter | Detail |
|---|---|
| Product | Nitric acid, concentrated |
| Grade | Analytical reagent |
| Capacity | 500 ml |
| Safety information | MSDS supplied |
| Shelf life | Depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted |
| Product code | SCL406/0113 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Concentrated Nitric Acid Used For?
For the xanthoproteic test, the teacher adds a small amount of concentrated nitric acid to egg-white solution in a test tube and warms it gently; a yellow colour develops. After cooling, adding an alkali such as ammonia solution deepens the colour to orange, completing the test. Students often recognise the same reaction from the yellow marks nitric acid leaves on skin, which is itself a protein reaction and a reminder of why gloves and care are needed.
Concentrated nitric acid is a strong oxidising acid that gives off irritating fumes, so it should be opened and dispensed only by teachers or trained staff in a fume cupboard, with goggles, face protection and an apron. Store the bottle upright in a cool, dark acid cabinet, separate from alcohols, organic materials and other reactive chemicals. Keep neutralising spill materials ready and follow the MSDS for first aid and disposal.
Supplier
Nitric Acid (Conc) is supplied by Jain Scientific Equipments Private Limited, which trades as ScienceLab from Ambala, Haryana, India, and works as a laboratory chemicals supplier in India for schools and colleges. For tender and vendor-registration paperwork, buyers can record the supplying company's GST registration (GSTIN 06AAECJ8618A1ZT) and its global Legal Entity Identifier, LEI 3358004HRD1JIVXKYX49. Learn more on our company profile.
Related Biology Lab Products
Reagents and protective items used with nitric acid in protein-test practicals:
- Million's Reagent (Test Of Proteins) — another colour test for proteins, specific to tyrosine
- Biuret Reagent (Protein Test) — the general protein test to compare with the xanthoproteic result
- Ammonium Hydroxide — alkali that turns the yellow product orange
- Safety Goggles — essential eye protection when dispensing the acid
- Transparent Plastic Laboratory Apron — helps protect clothing from acid splashes
Other reagents are available in the Biology Lab category.
Frequently Asked Questions
What is the xanthoproteic test done with Nitric Acid (Conc)?
The xanthoproteic test uses Nitric Acid (Conc) to turn proteins containing ring-structured amino acids yellow on gentle warming; adding an alkali such as ammonia solution after cooling deepens the colour to orange, confirming the result for students.
What concentration is Nitric Acid (Conc) supplied at?
Nitric Acid (Conc) is supplied as concentrated nitric acid in a 500 ml analytical reagent pack. An exact percentage is not stated on this page, so ask through our contact page if your stock register or method requires it.
Why has Nitric Acid (Conc) turned slightly yellow in storage?
Nitric Acid (Conc) slowly decomposes in light and warmth, which gives it a yellow tint. Store the bottle in a cool, dark acid cabinet with the cap tightly closed, as the MSDS advises, to slow this change.
Can students dispense Nitric Acid (Conc) themselves?
No. Nitric Acid (Conc) should be opened and dispensed only by trained staff in a fume cupboard, wearing goggles, face protection and an apron; students should observe or receive small pre-measured amounts under close supervision.
What is the shelf life of Nitric Acid (Conc)?
The shelf life of Nitric Acid (Conc) depends on the chemical, its grade and storage conditions, so no blanket period is stated. Ask us for the expiry date of the batch you are quoted, and keep the bottle upright, sealed and away from light.
Who supplies Nitric Acid (Conc)?
Nitric Acid (Conc) is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, to schools, colleges and distributors, usually together with the other reagents for a protein-test practical such as biuret and Millon's reagents.
Can Nitric Acid (Conc) be shipped with the rest of our order?
Nitric Acid (Conc) travels as hazardous goods and may need separate packing or transport from glassware and apparatus. The arrangement is confirmed for each order and destination, in India or international markets, when the quotation is prepared.
Request a Quote
To request pricing for Nitric Acid (Conc), code SCL406/0113, use our contact page or add it to the enquiry cart with your other reagents.
Last updated: 24 September 2026
