---
product_id: 17226762
title: "Potassium Phosphate Monobasic [KH2PO4] 99+% Fine Crystals 8 Oz in a Space-Saver Bottle"
brand: "eisen-golden laboratories"
price: "$37.42"
currency: USD
in_stock: true
reviews_count: 7
category: "Eisen Golden Laboratories"
url: https://www.desertcart.us/products/17226762-potassium-phosphate-monobasic-kh2po4-99-fine-crystals-8-oz-in
store_origin: US
region: United States of America
---

# Space-saving square bottle Wide-mouth easy dispensing 99+% reagent grade purity Potassium Phosphate Monobasic [KH2PO4] 99+% Fine Crystals 8 Oz in a Space-Saver Bottle

**Brand:** eisen-golden laboratories
**Price:** $37.42
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your lab game with precision-packed potassium phosphate!

## Quick Answers

- **What is this?** Potassium Phosphate Monobasic [KH2PO4] 99+% Fine Crystals 8 Oz in a Space-Saver Bottle by eisen-golden laboratories
- **How much does it cost?** $37.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/17226762-potassium-phosphate-monobasic-kh2po4-99-fine-crystals-8-oz-in)

## Best For

- eisen-golden laboratories enthusiasts

## Why This Product

- Trusted eisen-golden laboratories brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Mess-Free Dispensing:** Wide-mouth design with heat-sealed screw top ensures spill-free, controlled pouring
- • **Economical Bulk Value:** 8 oz bottle delivers 100x+ value compared to premixed commercial alternatives
- • **Ultra-Pure Reagent Grade:** Guaranteed 99+% purity for precise scientific and industrial applications
- • **Compact & Efficient Storage:** Space-saver square polypropylene bottle fits seamlessly on any shelf or lab bench
- • **Versatile Multi-Use Compound:** Ideal for phosphate solutions, reef tank dosing, and countless lab or industrial uses

## Overview

Potassium Phosphate Monobasic (KH2PO4) is a 99+% pure reagent grade fine powder, supplied in an 8 oz space-saving polypropylene bottle with a wide-mouth, heat-sealed cap for easy, spill-free dispensing. Perfect for scientific, industrial, and aquarium applications, it offers exceptional value and convenience in a compact, durable container.

## Description

You are buying 8 Ounces (by weight) of Potassium Phosphate Monobasic. The item is in an 8 Fluid Ounce (by volume) Polypropylene bottle. Potassium Phosphate Monobasic (KH2PO4); Phosphoric Acid / Monopotassium Salt / Potassium Dihydrogen Phosphate / has hundreds of uses. Bottles are made of sturdy polypropylene. The square, “space-saver” shape ensures that the bottles fit snugly on a shelf. The wide mouth makes for easy dispensing and stackability. To ensure a spill-free journey, the screw tops are heat-sealed and the bottles are sealed in plastic.

Review: It's monopotassium phosphate, regent grade. Not much more to say than that. - Reagent grade. Comes in a sturdy bottle with proper labeling. Was sealed in plastic bag and had a seal that you must remove on the mouth of the jar so not much chance of spillage. I got this to mix my own phosphate solution. The price they want for the commercial stuff is ridiculous. This bottle cost around 2x, but will make literally 100x + more than the premade stuff at the pet store.
Review: Dosing a reef tank - Using to dose a reef tank. Works as it should.

## Features

- Weight: 8 Ounces (227 Grams)
- Purity: 99+% Pure
- Grade: Reagent Grade
- Texture: Fine Powder
- CAS Number: 7778-77-0

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B00WSDILWQ |
| Best Sellers Rank | #211,217 in Health & Household ( See Top 100 in Health & Household ) #350 in Potassium Mineral Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (37) |
| Date First Available  | April 28, 2015 |
| Is Discontinued By Manufacturer  | No |
| Manufacturer  | Eisen-Golden Laboratories |

## Product Details

- **Brand:** Eisen-Golden Laboratories
- **Flavor:** Unflavored
- **Item Form:** Crystals / Powder
- **Primary Supplement Type:** Potassium
- **Unit Count:** 8.0 Ounce

## Images

![Potassium Phosphate Monobasic [KH2PO4] 99+% Fine Crystals 8 Oz in a Space-Saver Bottle - Image 1](https://m.media-amazon.com/images/I/81LZpORHVTL.jpg)

## Questions & Answers

**Q: Is this food grade?**
A: This product is rather better than food grade  (Grades overlap in one direction only)  Food grade is 95%  this product is reagent grade at better than 99% and meets or exceeds all specifications of the food chemicals

**Q: Can be used to stabilize PH in water?**
A: As a food additive, dipotassium phosphate is used in imitation dairy creamers, dry powder beverages, mineral supplements, and starter cultures. It functions as an emulsifier, stabilizer and texturizer; it also is a buffering agent, and chelating agent especially for the calcium in milk products.

As a food additive, dipotassium phosphate is generally recognized as safe by the United States Food and Drug Administration.

**Q: Do you have environmental product declaration (EPD) of the product?**
A: We have the certificate of analysis (COA) and the safety data sheet, MSDS, SDS  for this  product  contact us directly for this data we would be happy to email the documents.

**Q: Do you also sell kno3? i'm looking to ei dose my fish tank with kno3 and kh2po4 for nutrients.**
A: I no longer sell KNO3 on Amazon, One of our two Brands sell it on their own site

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's monopotassium phosphate, regent grade. Not much more to say than that.
*by S***Y on November 27, 2025*

Reagent grade. Comes in a sturdy bottle with proper labeling. Was sealed in plastic bag and had a seal that you must remove on the mouth of the jar so not much chance of spillage. I got this to mix my own phosphate solution. The price they want for the commercial stuff is ridiculous. This bottle cost around 2x, but will make literally 100x + more than the premade stuff at the pet store.

### ⭐⭐⭐⭐⭐ Dosing a reef tank
*by A***R on February 6, 2024*

Using to dose a reef tank. Works as it should.

### ⭐⭐⭐⭐⭐ Great Potassium substitute for KCl
*by R***O on February 16, 2022*

I use this instead of Potassium chloride in my own low calorie (and better tasting!) version of "Gatorade." Yes, you can consume it safely. KCl has a nasty after-taste (at least, to me) and the original "Gatorade" actually uses this to provide Potassium in their product.

## Frequently Bought Together

- Potassium Phosphate Monobasic [KH2PO4] 99+% Fine Crystals 8 Oz in a Space-Saver Bottle
- Potassium Acetate, ACS, 99%, 100 Grams
- NOW Foods Supplements, Potassium Gluconate Pure Powder 175 mg, Essential Mineral*, 1-Pound

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-25*