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Diwali 2021 Celebration!


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#21 msantosh1989

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Posted 21 September 2022 - 01:30 AM

As per "Indian Explosives Act", all chlorates are banned right here!! 

Hi BengalFlair... I know the official stand of the government. Chlorates are banned all over for civilian use. But I know that you guys in Bengal are able to get hands on Barium and use it for deep greens instead of Baryta. Because of covid and ban on fireworks last year, there was some difficulty. Since it is not the case this year, I wanted to know if you guys are able to get it this year.

In any case I am still running from pillar to post in Andhra pradesh to get some Potassium chlorate.  :lol: You know better than me that without Potash its difficult to make coloured stars.



#22 BengalFlair

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Posted 21 September 2022 - 01:17 PM

 But I know that you guys in Bengal are able to get hands on Barium and use it for deep greens instead of Baryta. 

I think you have got wrong information or confused with barium chlorate and barium chloride.

I do believe very few pyro people in Bengal after 1970/1980 have at least seen barium chlorate themselves, far from used it. IIRC in 1970/1980 the lab grade (illegal) price was INR 2000/2500 per Kg.

 

 that without Potash its difficult to make coloured stars.

I strongly disagree!! Any acceptable star colours are practically feasible to make without chlorate or per chlorate but blue or nearest to blue. I never used chlorate or per chlorate for my stars except blue.



#23 msantosh1989

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Posted 22 September 2022 - 04:52 AM

I think you have got wrong information or confused with barium chlorate and barium chloride.

 

Barium chloride is useful in fireworks?

 

I have someone I know who used to reside in Bengal, they have permanently shifted here. He told me that there are Barium and Baryta available in Bengal and Barium is generally costly. He did not know what is Barium and what Baryta is. I assumed Baryta to be Ba(NO3)2 and Barium to be BaClO4. 

 

And BengalFlair, its difficult to find even PVC or any other chlorine donor here, without which even greens not possible unless we add some KClO3. Yes, reds are possible without KClO3 or any chlorine donor. Anyway my experience in fireworks not much. So any inputs are valuable for me. And Thanks for replying each and every question of mine.

 

If you can suggest some good formulas for green without the need for chlorates or chlorine donors, I will be more than happy to try them. 



#24 sora

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Posted Today, 11:28 AM

Hello Santosh,
I'm from Bengal. Just curious why PVC and other stuff are hard to get in APradesh, being not very far  from Sivkasi, the fireworks capital of India? 
I've used Barium CHLORIDE in torches, but one still needs PVC  to intensify color. 

Back in the 90s, I  synthesized some amount of KP , using double decomposition of HCLO4 and KCL, the process has some risks, particularly disposal of waste liquids, but I had the luxury of a fully equipped chemistry lab then. Again, even with KP, you need a chlorine donor to get good colors.

I think its practically impossible to make good green or any good color for that matter, without a chlorine donor. There are some recent Boron based formulations which might work, but probably expensive  and even harder to get. Another alternative is Zinc based stars, which are much paler compared to standard greens.

BengalFlair can tell you more on this




 






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