---
product_id: 26668756
title: "Negative Stain Kit - Set of 3 30mL Microscope Stains - Congo Red, Hydrochloric Acid, Formalin Nigrosin Solution"
brand: "innovating science"
price: "€ 51.09"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/26668756-negative-stain-kit-set-of-3-30ml-microscope-stains-congo
store_origin: ES
region: Spain
---

# Complete multi-stain chemistry kit Enhances microscopic contrast 3x 30mL precision stain solutions Negative Stain Kit - Set of 3 30mL Microscope Stains - Congo Red, Hydrochloric Acid, Formalin Nigrosin Solution

**Brand:** innovating science
**Price:** € 51.09
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate your microscopy game with crystal-clear contrast!

## Quick Answers

- **What is this?** Negative Stain Kit - Set of 3 30mL Microscope Stains - Congo Red, Hydrochloric Acid, Formalin Nigrosin Solution by innovating science
- **How much does it cost?** € 51.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/26668756-negative-stain-kit-set-of-3-30ml-microscope-stains-congo)

## Best For

- innovating science enthusiasts

## Why This Product

- Trusted innovating science brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Comes with detailed Safety Data Sheets for secure handling and storage
- • **Lab-Ready Volume:** Each 30mL bottle provides enough solution for multiple staining sessions
- • **Compact & Portable:** Lightweight 3.2 oz kit fits easily into any professional lab setup
- • **Precision Triple-Stain Set:** Includes Congo Red, Hydrochloric Acid, and Formalin Nigrosin for versatile negative staining
- • **Enhanced Microbial Visibility:** Background staining technique highlights bacteria with crystal-clear contrast

## Overview

This Negative Stain Kit includes three 30mL bottles of Congo Red, Hydrochloric Acid (1%), and Formalin Nigrosin Solution designed for negative staining in microbiology. It enhances bacterial visibility by staining the background, not the cells, providing superior contrast under achromatic lenses. Ideal for professional chemistry labs, the kit is lightweight, portable, and includes safety data sheets for proper chemical handling.

## Description

Negative Stain Kit - Set of 3 30mL Microscope Stains - Congo Red, Hydrochloric Acid, Formalin Nigrosin Solution

## Features

- Chemical kit designed to perform a negative stain on multiple cultures
- Negative stains dye the culture background rather than the bacteria themselves, enhancing visibility
- Kit contains enough material to run several stains
- Perfect kit for chemistry labs
- Safety data sheets included to inform safe storage and maintenance of chemicals

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Objective Lens Description | Achromatic |
| Item Weight | 3.2 ounces |
| Item Dimensions L x W x H | 6"L x 4"W x 2"H |
| Color | clear or light-colored |
| Material Type | Cardboard, Plastic, Glass |

## Product Details

- **Material:** Cardboard, Plastic, Glass
- **Color:** clear or light-colored
- **Product Dimensions:** 6"L x 4"W x 2"H
- **Item Weight:** 0.2 Pounds
- **Brand:** ALDON
- **Objective Lens Description:** Achromatic
- **UPC:** 724832050148
- **Global Trade Identification Number:** 00724832050148
- **Manufacturer:** Innovating Science

## Images

![Negative Stain Kit - Set of 3 30mL Microscope Stains - Congo Red, Hydrochloric Acid, Formalin Nigrosin Solution - Image 1](https://m.media-amazon.com/images/I/611E83dgqBL.jpg)

## Questions & Answers

**Q: Can you please tell me the molarity of the hcl in this kit? thank you**
A: The molarity of the acid is negligibly low. The exact molarity is difficult to calculate given the ethanol in the solution.

## Frequently Bought Together

- ALDON Innovating Science Negative Stain Kit - Set of 3 30mL Microscope Stains - Congo Red, Hydrochloric Acid, Formalin Nigrosin Solution
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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-25*