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methanethiol

Mercaptan

WATER

£69.00£99.00


 

Quantity
SKU: WA-74-93-1 Categories: , Tag:

Product Description

Mercaptan, like drains or soft white cheese”

Certified water flavour standard used to train professional tasters to recognize and scale the intensity of mercaptan character.

Methanethiol is formed by anaerobic sulphate-reducing bacteria and Cyanobacteria. It can also arise due to decomposition of plants and algae in lakes and reservoirs. Methanethiol imparts an unpleasant sulphury note, reminiscent of drains or rotting garbage.

Food grade | Free from sensory impurities | Extensively tested | Safe to smell and taste.

IMPORTANCE

Methanethiol imparts an unpleasant sulphury note to water. It is easily oxidized to less odour-active species, so its presence is indicative of the failure of water treatment processes or post-treatment contamination.

ORIGINS

Methanethiol is formed in water by anaerobic sulphate-reducing bacteria and Cyanobacteria or by decay of grass or algae in lakes or reservoirs. It can also arise from decomposition of algae following an episode of algal bloom.

HOW TO TASTE

The best way to assess mercaptan flavours in water is as follows. Without covering the glass, swirl the sample to release the aroma. Take a single short sniff. Repeat as necessary.

CAS NUMBER

The CAS registry number of methanethiol is 74-93-1.

Additional Information

process

distribution, raw-water

flavour

algal, bacterial, chemical, decaying vegetation, off-flavour

chemical

sulphur compounds

capsules per pot

10 capsules, 6 capsules

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