---
product_id: 69888501
title: "0.04% Aqueous Bromothymol Blue, 500mL - The Curated Chemical Collection by Innovating Science"
brand: "aldon"
price: "A$75"
currency: AUD
in_stock: true
reviews_count: 8
category: "Aldon"
url: https://www.desertcart.com.au/products/69888501-0-04-aqueous-bromothymol-blue-500ml-the-curated-chemical-collection
store_origin: AU
region: Australia
---

# Clear color shift yellow↔blue 0.04% precise concentration Made in USA quality 0.04% Aqueous Bromothymol Blue, 500mL - The Curated Chemical Collection by Innovating Science

**Brand:** aldon
**Price:** A$75
**Availability:** ✅ In Stock

## Summary

> 🌈 Transform your experiments with vibrant pH clarity!

## Quick Answers

- **What is this?** 0.04% Aqueous Bromothymol Blue, 500mL - The Curated Chemical Collection by Innovating Science by aldon
- **How much does it cost?** A$75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/69888501-0-04-aqueous-bromothymol-blue-500ml-the-curated-chemical-collection)

## Best For

- aldon enthusiasts

## Why This Product

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

## Key Features

- • **Safety First, Always:** Comes with clear handling instructions and available safety data sheets for peace of mind.
- • **Pinpoint pH Precision:** 0.04% concentration ensures accurate and reliable pH detection every time.
- • **Proudly American-Made:** Crafted and bottled in the USA, guaranteeing premium quality and consistency.
- • **Instant Visual Feedback:** Watch solutions transform from yellow to blue, making pH changes unmistakably clear.
- • **Classroom-Ready Chemistry:** Perfect for hands-on learning and engaging scientific demonstrations at any education level.

## Overview

Innovating Science's 0.04% Aqueous Bromothymol Blue is a high-quality, American-made pH indicator solution that visually signals acidity or alkalinity through a distinct yellow-to-blue color change. Ideal for educational labs and precise scientific applications, it offers reliable performance with safety guidelines included.

## Description

desertcart.com: 0.04% Aqueous Bromothymol Blue, 500mL - The Curated Chemical Collection by Innovating Science : Industrial & Scientific

Review: Fun Science - Perfect for testing CO2 presence in breath - used it in a Cellular Respiration Lab (high school). Could be demo’d for any level of science, though.
Review: Great buy - Great quality.

## Features

- PRECISE PH INDICATOR || Innovating Science's 0.04% aqueous bromothymol blue is a reliable indicator for determining the pH of a solution.
- VISUALIZE PH CHANGES || In an acidic solution, the indicator will turn yellow, and in a basic solution, the indicator will turn blue, providing a clear visual representation for scientific observations.
- EDUCATIONAL || Bromothymol blue is an ideal tool for allowing students to explore pH concepts and perform hands-on experiments in the classroom.
- SAFETY & STORAGE || Instructions for handling and safe storage are printed on the bottle. A safety data sheet can also be provided upon request.
- MADE IN THE USA || The Curated Chemical Collection by Innovating Science is comprised of high quality chemicals manufactured and bottled in the United States.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0731VJ1DG |
| Best Sellers Rank | #15,842 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #21 in Aqueous Solutions |
| Date First Available | June 21, 2017 |
| Global Trade Identification Number | 00724832000907 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 1.17 pounds |
| Item model number | IS11070 |
| Manufacturer | Innovating Science |
| Product Dimensions | 2.75 x 2.75 x 7 inches |
| UPC | 724832000907 |

## Product Details

- **Brand:** ALDON
- **Item Volume:** 500 Milliliters
- **Item Weight:** 1.17 Pounds
- **Package Information:** Bottle
- **Percentage assay:** 0.04

## Images

![0.04% Aqueous Bromothymol Blue, 500mL - The Curated Chemical Collection by Innovating Science - Image 1](https://m.media-amazon.com/images/I/71lfubitpuL.jpg)

## Questions & Answers

**Q: Why is this btb solution green? I thought it's supposed to be blue?**
A: This is a PH indicator, and it's changes color based on the neutrality of the solution. Color may appear more green when PH is around 7. It appears more blue when the Ph is basic.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fun Science
*by C***Y on October 13, 2025*

Perfect for testing CO2 presence in breath - used it in a Cellular Respiration Lab (high school). Could be demo’d for any level of science, though.

### ⭐⭐⭐⭐⭐ Great buy
*by M***S on October 5, 2025*

Great quality.

### ⭐⭐⭐⭐⭐ Great purchase for classroom lab indicator!
*by H***S on December 15, 2022*

Middle school Students enjoyed the respiration lab as they were using the product as indicator of carbon dioxide production. They really loved the changes in color.

## Frequently Bought Together

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-10*