Specialty gases
Specialty gases, made and supplied in India by a company that fills its own cylinders
Ultra-high-purity acetylene to 99.99 %, custom mixtures to ten components, and the rare and pharmacopoeia gases a laboratory, hospital or process plant cannot run without. Each page below says plainly whether KIGL makes the gas or supplies it, and what document comes with the cylinder.
- 99.99 %
- UHP acetylene, in DMF
- 10
- Components in a custom mixture
- 79
- Years in industrial gas
The specialty gases
In order from the grade KIGL makes itself to the gases it sources and supplies. The distinction matters for lead time, and it is stated on every page rather than left to be assumed.
- Ultra-high-purity acetylene — 99.99 %, dissolved in DMF, for atomic absorption spectroscopy UHP acetylene at 99.99 % purity dissolved in DMF, with phosphine and hydrogen sulphide below 10 ppm. Made in India by KIGL for AAS and analytical laboratories.
- High purity acetylene gas at 99 % — made in India, and custom grades on request High purity acetylene gas at 99 % dissolved in DMF, with phosphine and hydrogen sulphide at ppm levels from KIGL's own purification system. Made in India.
- Multi-component gas mixtures — up to ten components, blended to ±5 % Custom gas mixtures with up to 10 components blended to ±5 % of the specified concentration. Welding shielding, process and instrument mixtures from KIGL.
- Helium gas supply — sourced, filled and delivered by KIGL Helium gas supplied in cylinders for laboratory, welding and industrial use. KIGL is a helium supplier, not a producer — no helium is manufactured in India.
- Industrial hydrogen gas supplier — cylinders for chemical plants, heat treatment and laboratories Hydrogen gas supplied in high-pressure cylinders for hydrogenation, heat treatment, laboratory carrier gas and process use. Cylinder supply from KIGL.
- Nitrous oxide (N₂O) supply for medical and industrial use Nitrous oxide to Indian Pharmacopoeia standard for anaesthesia and analgesia, plus industrial grade. Supplied in cylinders by KIGL, in the gas trade since 1947.
Made here, or supplied here
| Gas | KIGL's role | Specification |
|---|---|---|
| Ultra-high-purity acetylene | Manufactured at Guwahati | 99.99 % in DMF, PH₃ and H₂S below 10 ppm, certificate per batch |
| High-purity acetylene | Manufactured at Guwahati | 99 %, custom purities on request |
| Gas mixtures | Blended by KIGL | Up to 10 components, ±5 % of stated concentration |
| Helium | Supplied, not produced — no helium is produced in India | Compressed cylinders; no liquid helium |
| Hydrogen | Supplied from licensed producers | High-pressure cylinders and banks, grade to application |
| Nitrous oxide | Supplied | Indian Pharmacopoeia grade for medical use; industrial grade |
Choosing and using them
- Choosing a shielding gas: argon, carbon dioxide or a mixture Argon, CO2 or a mixture? What each does to penetration, spatter and arc stability, and how parent metal and thickness decide the answer for you.
- Choosing an acetylene grade: industrial, high purity and ultra high purity Industrial acetylene to IS 308 at 98 %, high purity at 99 %, ultra high purity at 99.99 % in DMF. Which grade your process needs, and what it buys.
- Nitrous oxide: what it is used for, and what a buyer must have in place Nitrous oxide is an oxidiser, a medical gas and a controlled substance. What it is used for, and what an Indian buyer must have in place.
- Why hydrogen leaks behave unlike any other gas, and what to do about it Hydrogen leaks behave unlike any other gas: a nearly invisible flame, collection at ceiling level, and ignition from static. What that means on site.
- Calibration standards and welding mixtures: not the same product A calibration standard and a welding mixture are both gas mixtures and nothing else alike. Tolerance, certification and cost, and which you actually need.
- Helium: why it is scarce, where it cannot be replaced, and how to waste less Helium is finite, imported and expensive. Where it genuinely cannot be substituted, where it can, and practical ways to stop wasting it.
Why buy specialty gases from a manufacturer
A specialty gas is bought on its paperwork. The purity on the certificate is what the instrument, the pharmacopoeia or the process audit will hold you to, so the supplier has to be able to stand behind the number. KIGL fills ultra-high-purity acetylene through its own purification train and analyses each batch, and blends mixtures on its own manifold. For the gases it does not make, it says so, names the constraint, and gives a lead time it can keep.