News dynamics

BLOG

Company News

28

2020

10

Biuret protein test Anhydrous copper sulfate has a strong water absorption

Biuret protein test Anhydrous copper sulfate has a strong water absorption

Biuret protein testAnhydrous copper sulfate has strong water absorption. When it is put into 95% ethanol or water-containing organic matter, it absorbs water and returns to blue crystals. The copper ions in copper sulfate can destroy the three-dimensional structure of protein and denature it. When measuring protein concentration, alkali is often added to the protein, and then copper sulfate solution is added. At this time, the solution will turn purple. This reaction is called the biuret reaction.

Learn more

28

2020

10

The reaction of copper sulfate solution and sodium hydroxide solution

According to the conditions of the double decomposition reaction, the blue copper sulfate solution reacts with the sodium hydroxide solution to generate sodium sulfate and copper hydroxide precipitate. Since the reaction is carried out in the solution, the generated sodium sulfate solution and blue copper hydroxide precipitate are colorless. Therefore, the reaction phenomenon should be described as: the solution becomes colorless and a blue precipitate is generated.

21

2024

10

Is “anhydrous copper sulfate turns blue when it comes into contact with water” a physical change or a chemical change?

"Anhydrous copper sulfate turns blue when it meets water" is a chemical change process. This is because in this process, anhydrous copper sulfate (CuSO₄) reacts chemically with water molecules to generate a new substance - copper sulfate pentahydrate (CuSO₄·5H₂O). Copper sulfate pentahydrate is a blue crystal, which has a significant color difference from the white or off-white powder of anhydrous copper sulfate.

05

2019

06

The reaction between water and anhydrous copper sulfate

Anhydrous copper sulfate is a white solid, which reacts with water to form copper sulfate pentahydrate, which is blue. There will be blue precipitation, because anhydrous copper sulfate will combine with water to form copper sulfate, which reduces the mass of solvent in the saturated solution, so more precipitation will occur, but it will not be absorbed dry. Formula: CuS04+5H20=CuS04•5H20.

24

2017

10

Why does anhydrous copper sulfate change from white to blue when dissolved in water?

The reason why anhydrous copper sulfate changes from white to blue when dissolved in water is that copper ions combine with water molecules to form hydrated copper ions, which appear blue in solution. This phenomenon is not only of theoretical significance, but also plays an important role in practical applications, such as detecting the presence of water.

28

2020

10

Anhydrous copper sulfate solid turns from white to blue when in contact with water

Verify the water generated by chemical reactions. Anhydrous copper sulfate has extremely strong water absorption. When anhydrous copper sulfate solid meets water, it changes from white to blue, generating copper sulfate pentahydrate (CuSO4·5H2O). It can verify the existence or generation of water in chemical reactions and absorb water vapor. Note: CuSO4 and CuSO4·5H2O are both pure substances. Chemical equation: CuSO4+5H2O==CuSO4·5H2O (reaction conditions: heating)

SUBSCRIPTION INFORMATION

We will send you real-time information regularly!

Subscription
SAINTGREEN TECHNOLOGY

Working time:

08:00-12:00 AM 13:30 - 17:30 PM UTC+8

（Monday to Saturday）

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

Hot Products

Wuzhou SaintGreen Technology Co,.Ltd

86-(0)774-2689882

86-(0)774-2693400

sales-wzsgtech@outlook.com

Postal Code: 543100

Address: 398, Guangxin Rd, Longwei District, Wuzhou, Guangxi, China

QR code

QR code

All rights reserved©2024 Wuzhou SaintGreen Technology Co,.Ltd

SEO Tags

 Power: 300.cn   Business License