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Sodium Dihydrogen Phosphate
Sodium Dihydrogen Phosphate (Product Code: SCI-481/205) is an analytical reagent grade acidic phosphate salt used to prepare phosphate buffers for pH, enzyme and biochemistry practicals in school, college and research laboratories. Also known as monosodium phosphate, it comes as a 100 g pack with its MSDS for teachers who make up their own pH buffer solution in the lab. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Grade | Analytical reagent |
| Other names | Monosodium phosphate; sodium phosphate monobasic |
| Pack size | 100 g |
| MSDS | Supplied with the product |
| Shelf life | 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 | SCI-481/205 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Sodium Dihydrogen Phosphate Used For?
The most common job for sodium dihydrogen phosphate is making phosphate buffers. Mixed with disodium hydrogen phosphate in different proportions, it gives solutions that hold a steady pH close to neutral, which is why it appears in practicals on enzyme activity, the effect of pH on catalase or amylase, and the preparation of wash solutions in biology labs. Students can check each buffer with a pH meter and see how little the reading moves when a few drops of acid or alkali are added.
It also serves in qualitative analysis as a source of phosphate ions: acidified with nitric acid and warmed with ammonium molybdate, a phosphate solution gives a yellow precipitate. Make stock solutions to an exact volume in a volumetric flask with distilled water, label them with the date, and keep the solid tightly closed because the salt picks up moisture from humid air.
Supplier
Jain Scientific Equipments Private Limited trades as ScienceLab and supplies Sodium Dihydrogen Phosphate among the salts, indicators and glassware used for buffer and pH work. From its base in Ambala, Haryana, the company serves school laboratories, university departments, research institutes and distributors in India and international markets. Read more on the ScienceLab profile page.
Related Laboratory Equipment
Buffer preparation and phosphate testing with Sodium Dihydrogen Phosphate usually call for these items:
- Sodium Hydrogen Phosphate — the partner salt for phosphate buffer mixtures.
- PH Meter 0-14 — checks the pH of every buffer you prepare.
- Volumetric Flask — makes up stock solutions to an exact volume.
- Ammonium Molybdate — reagent for the yellow precipitate test for phosphate.
- Sodium Phosphate — another phosphate salt from the same reagent range.
More reagents and apparatus are listed in our Laboratory Equipment category.
Frequently Asked Questions
What is Sodium Dihydrogen Phosphate used for in the lab?
Sodium Dihydrogen Phosphate is mainly used with disodium hydrogen phosphate to prepare phosphate buffer solutions for pH, enzyme and biochemistry practicals. It also supplies phosphate ions for qualitative tests such as the ammonium molybdate test in chemistry classes.
Is Sodium Dihydrogen Phosphate supplied as the anhydrous salt or a hydrate?
The listing for Sodium Dihydrogen Phosphate (SCI-481/205) states analytical reagent grade and a 100 g pack but does not state the hydrate form. Because buffer recipes use different weights for anhydrous and hydrated salts, ask us to confirm the form before you order.
What else do I need to make a phosphate buffer?
To make a phosphate buffer with Sodium Dihydrogen Phosphate you also need disodium hydrogen phosphate, distilled water, a balance, volumetric glassware and a pH meter to check the result. We can quote these items together with the salt in one enquiry.
How should Sodium Dihydrogen Phosphate be stored?
Keep Sodium Dihydrogen Phosphate in its original container, tightly closed, in a cool and dry reagent cabinet, since the salt can absorb moisture from humid air. Follow the storage and handling notes in the MSDS supplied with the 100 g pack.
How long does Sodium Dihydrogen Phosphate last?
How long Sodium Dihydrogen Phosphate lasts depends on the chemical, its grade and storage conditions, so we do not state a fixed shelf life. Ask us for the expiry date of the batch you are quoted when you request pricing.
Who supplies Sodium Dihydrogen Phosphate on scilabexport.com?
Sodium Dihydrogen Phosphate on scilabexport.com is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, which sources analytical reagents for schools, colleges, research laboratories and dealers in India and international markets.
Request a Quote
For a quotation on Sodium Dihydrogen Phosphate, share the number of 100 g packs, the hydrate form your recipe uses and your delivery location through our contact page. You can also collect it with the partner phosphate salt and a pH meter in the enquiry cart and send one combined request.
Last updated: 24 September 2026
