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Potassium and Sodium Tartrates
Potassium and Sodium Tartrates (Product Code: SCL380/090) is a tartrate salt reagent, the name normally referring to potassium sodium tartrate (Rochelle salt), used to prepare Fehling’s solution B and biuret reagent and for crystal-growing work in teaching laboratories. Technicians who make up their own reagents buy it as a 100 g pack of analytical reagent grade with an MSDS. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, a laboratory chemicals supplier.
Specifications
| Parameter | Detail |
|---|---|
| Capacity (pack size) | 100 g |
| Grade | Analytical reagent |
| Safety document | Supplied with MSDS |
| 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 | SCL380/090 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Potassium Sodium Tartrate (Rochelle Salt) Used For?
Its main job in the teaching lab is reagent preparation. Dissolved with sodium hydroxide it forms Fehling’s solution B, and it is also an ingredient of many biuret reagent recipes; in both, the tartrate keeps copper ions in solution under alkaline conditions so the colour tests work. Keeping the dry salt lets a technician prepare fresh solution only when a practical is scheduled.
Rochelle salt also grows large, clear crystals from a warm saturated solution left to cool slowly, which makes it a popular choice for a crystallization kit in school science clubs. Physics teachers use the same crystals to introduce piezoelectricity, because they produce a small voltage when squeezed. The salt is of low hazard compared with many reagents, but avoid dust in the eyes, keep the pack sealed in a dry cupboard and follow the MSDS.
What to Specify When Ordering
- Confirm that you need potassium sodium tartrate (Rochelle salt), the double salt, rather than separate potassium and sodium tartrates.
- Number of 100 g packs required.
- Whether sodium hydroxide or copper sulfate should be quoted too, for making Fehling’s or biuret reagent.
Supplier
This tartrate reagent is sourced and supplied by Jain Scientific Equipments Private Limited, which trades as ScienceLab from Ambala, Haryana. Buyers who need vendor registration details can use the company’s GSTIN 06AAECJ8618A1ZT and its DGFT Importer-Exporter Code AAECJ8618A, under which export shipments are handled. More about us is on the company profile page.
Related Laboratory Equipment
Preparing reagents or growing crystals with Potassium and Sodium Tartrates also calls for:
- Solution Fehling B — the ready-made solution, if you prefer not to prepare it.
- Sodium Hydroxide — the alkali combined with the tartrate in Fehling B.
- Balance Triple Beam — weighs the salt for each batch of solution.
- Glass Beaker — for dissolving the salt and growing crystals.
- Spatula, Spoon End — transfers the dry salt cleanly.
More reagents and apparatus are listed in our Laboratory Equipment category.
Frequently Asked Questions
What is Potassium and Sodium Tartrates?
Potassium and Sodium Tartrates (SCL380/090) is a tartrate salt reagent; the name normally refers to potassium sodium tartrate, also called Rochelle salt. It is used to prepare Fehling’s solution B and biuret reagent and for growing crystals in teaching labs.
Is this one double salt or two separate tartrates?
The name Potassium and Sodium Tartrates normally describes potassium sodium tartrate, a single double salt. If your method needs separate potassium tartrate and sodium tartrate instead, say so in your enquiry and we will confirm exactly what can be supplied.
How much Potassium and Sodium Tartrates is in a pack?
Each pack of Potassium and Sodium Tartrates holds 100 g of analytical reagent grade salt and comes with an MSDS. Tell us how many packs you need for reagent preparation or crystal-growing sessions.
Can Potassium and Sodium Tartrates be used to make Fehling’s solution B?
Yes. Potassium and Sodium Tartrates, as potassium sodium tartrate, is the tartrate conventionally used with sodium hydroxide to prepare Fehling’s solution B. Follow your laboratory method for quantities, or order the ready-made Solution Fehling B listed on our site.
What is the shelf life of Potassium and Sodium Tartrates?
The shelf life of Potassium and Sodium Tartrates depends on the chemical, its grade and storage conditions, so no set period is given. Ask us for the expiry date of the batch you are quoted, and store the pack sealed away from moisture.
Who supplies Potassium and Sodium Tartrates?
Potassium and Sodium Tartrates is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India. The company sources this reagent and supplies it with glassware and balances to schools, colleges, dealers and importers in India and international markets.
Request a Quote
For a quotation on Potassium and Sodium Tartrates, use our contact page or add it to the enquiry cart with any other reagents you plan to prepare. State the number of packs, the exact salt you need and the delivery location.
Last updated: 24 September 2026
