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  4. Aluminum sulfate (Daimei Chemical Industry Co., Ltd.)

Aluminum sulfate
Daimei Chemical Industry Co., Ltd.

Daimei Chemical Industry Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

43.0hours

About This Product

Purpose

■Water purification agent

When aluminum sulfate is added to water, it reacts with the alkaline content in the water to form a polymer of aluminum hydroxide. This colloidal polymer has a positive charge near neutrality, so it neutralizes suspended matter in water (clay, organic matter, algae, etc.) that has an opposite charge and coagulates, forming a so-called floc. This floc also absorbs fine particles of suspended matter, becomes large and heavy, and settles. This property is the reason why it is used as a water purification agent (flocculant) for urban water and sewage systems, industrial water, industrial wastewater, etc.

■Sizing agent

After adding the rosin liquid to the refined pulp and stirring thoroughly, adding aluminum sulfate causes the rosin and fibers to coordinate with the aluminum ions and stick to the fiber surface. This sizing process improves paper quality by preventing liquid penetration (ink stain prevention), preventing fuzzing, and imparting smoothness.

■For fire extinguishers

A typical foam fire extinguisher contains aluminum sulfate and sodium bicarbonate, which when mixed together produce carbon dioxide gas, and the colloidal aluminum hydroxide produced at the same time gives the carbon dioxide bubbles stickiness and allows the air to escape. The blocking effect increases and extinguishes the fire.

■Others

Soil neutralizers, dyeing aids, pigments, pharmaceuticals, leather tanning agents, building materials, concrete quick setting agents, etc. This product has self-declared conformance to JIS K1450 based on JIS Q1000.

■Characteristics

・The aqueous solution is acidic and has astringent properties. ・When neutralized, white colloidal aluminum hydroxide hydrate is precipitated. ・When heated, it releases crystal water and becomes anhydrous at about 460℃. ・When further heated to 770℃ or higher, sulfur dioxide gas is decomposed and released, and at around 850℃ it becomes alumina (Al203).

■Handling precautions

・Please note that the powder may solidify if it gets wet or absorbs moisture. ・When mixed with hypochlorites (sodium hypochlorite, bleach, bleaching powder, limescale, etc.), toxic chlorine gas (Cl2) is generated. ・The aqueous solution is acidic and will corrode metals such as iron, so be careful with the container. ・Liquid products may form crystals when cold, so if there is a risk of this, please keep them warm. ・As this is an acidic substance, please wear protective equipment when handling it. ・For other details, please refer to the SDS.

  • Product

    Aluminum sulfate

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1 Models of Aluminum sulfate

Image Part Number Price (excluding tax) Lead (Pb) wtppm Iron (Fe) wtppm Aluminum oxide (Al2O3) wt% Packing style Viscosity (mPa・s) Solubility Mercury (Hg) wtppm Specific gravity (20℃) Official Gazette Publication Number (Chemical Substances Control Law) Exterior General formula Manganese (Mn) wtppm Chromium (Cr) wtppm Cadmium (Cd) wtppm Ammonia nitrogen (N) wtppm Arsenic (As) wtppm Smell PH value PH CASRN®

Aluminum sulfate for water supply

Available upon quote

5 or less

200 or less

8.0~8.2

Tank truck

12~20

Mix with water in any proportion.

0.1 or less

1.27~1.32

1-25

Colorless to yellowish light brown transparent liquid

Al (SO24) 3・nH2O

15 or less

5 or less

1.0 or less

100 or less

2.0 or less

Odorless

3.0 or more (2g/100mL solution)

About 2

10043-01-3

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About Company Handling This Product

Daimei Chemical Industry Co., Ltd.

Response Rate

100.0%

Response Time

43.0hrs

  • Japan

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Aluminum
Aluminum　Daimei Chemical Industry Co., Ltd.
Daimei Chemical Industry Co., Ltd.

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