I used to buy HC-110 in Europe that was in a round bottle. The concentrate was weaker than the HC-110 sold in the U.S. and the dilutions, therefore, were different. Check the label and compare dilutions....Maybe someone who knows can chime but maybe it's a bottle of the European HC-110?
Interesting. So your new bottle is round and yellow? Is it also viscous like the old stuff. Maybe someone who knows can chime but maybe it's a bottle of the European HC-110?
Nope,
If you look at the msds, Cat 660 1777 is identical to Cat 501 0541, which is the old formula type based on a sulfur dioxide adduct of an organic. The "new version" contained potassium sulfite and had a different catalog number.
The older version containing a sulfur dioxide adduct of an organic was a lot more difficult (and expensive) to make, but that ingredient was most likely what its legendary longevity could be attributed to.
Thanks Matt, that makes sense but as a result has SinoPromise ended up with a developer that is effectively identical to Ilfotec HC so now can only compete on price?
pentaxuser
I never thought HC-110 was effectively identical to Ilfotec HC before, so I would be surprised if it is now.
The real result is that there is again a source for a developer incorporating a sulfur dioxide adduct of an organic that doesn't depend on Tetenal manufacturing it in Germany.
Two very disparate potential sources is better than one potential source.
I am confused , Matt. Isn't Alan saying that the new SinoPromise HC110 is based on a new ingredient as follows:
"Nope,
If you look at the msds, Cat 660 1777 is identical to Cat 501 0541, which is the old formula type based on a sulfur dioxide adduct of an organic. The "new version" contained potassium sulfite and had a different catalog number."
However you seem to be saying that there is again a source for the older sulfur dioxide adduct of an organic as folows:
"There are now two different sources, one of which doesn't depend on Tetenal, So does the new HC110 from SinoPromise now use the same sulfur dioxide as before? If so where does the change to potassium sulfite that Alan mentions come from and has HC110's legendary longevity been restored with this source of sulfur dioxide?
Thanks
pentaxuser
What Alan said.
I just hope that Sino Promise didn't merely re-publish an earlier MSDS with their name on it, and get the wrong one!
We probably need to start referring to three versions of HC-110: pre-2019 version; 2019-2021 version and 2022 - version!
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