Q: Why does Aluminum Sulfate cake during storage, and how can it be prevented?

Aluminum Sulfate is hygroscopic and absorbs moisture from the air, leading to caking. To prevent this, store it in a dry, humidity-controlled warehouse on wooden pallets, and ensure the inner LDPE liners of the bags remain tightly sealed.

Q: Is Aluminum Sulfate safe for drinking water purification in India?

Yes, Non-Ferric Aluminum Sulfate is widely certified and used in India for municipal drinking water treatment. It must comply with IS 260 standards to ensure heavy metal impurities are well within safe limits.

Q: How does Aluminum Sulfate act as a sizing agent in paper manufacturing?

It reacts with rosin size to form aluminum resinate, which precipitates onto the paper fibers. This process makes the paper resistant to water and ink penetration, improving its overall printability.

Q: What is the standard lead time for bulk orders in India?

For standard grades like Non-Ferric Alum, the lead time typically ranges from 3 to 7 working days for domestic dispatches from major chemical hubs like Gujarat, Maharashtra, and Tamil Nadu.

Question 1

What is the difference between Ferric Alum and Non-Ferric Alum?

Accepted Answer

Non-Ferric Alum contains extremely low iron content (typically <0.01% Fe) and is white, making it ideal for paper manufacturing and drinking water treatment where staining must be avoided. Ferric Alum contains higher iron levels (up to 0.5% Fe), has a brownish tint, and is used for industrial wastewater treatment.

Question 2

Why does Aluminum Sulfate cake during storage, and how can it be prevented?

Accepted Answer

Aluminum Sulfate is hygroscopic and absorbs moisture from the air, leading to caking. To prevent this, store it in a dry, humidity-controlled warehouse on wooden pallets, and ensure the inner LDPE liners of the bags remain tightly sealed.

Question 3

Is Aluminum Sulfate safe for drinking water purification in India?

Accepted Answer

Yes, Non-Ferric Aluminum Sulfate is widely certified and used in India for municipal drinking water treatment. It must comply with IS 260 standards to ensure heavy metal impurities are well within safe limits.

Question 4

How does Aluminum Sulfate act as a sizing agent in paper manufacturing?

Accepted Answer

It reacts with rosin size to form aluminum resinate, which precipitates onto the paper fibers. This process makes the paper resistant to water and ink penetration, improving its overall printability.

Question 5

What is the standard lead time for bulk orders in India?

Accepted Answer

For standard grades like Non-Ferric Alum, the lead time typically ranges from 3 to 7 working days for domestic dispatches from major chemical hubs like Gujarat, Maharashtra, and Tamil Nadu.

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