thiosulfate
Photographic developing agent
Thiosulfate is a chemical compound containing sulfur and oxygen, used in photography to fix images by dissolving unexposed silver halide crystals.
Sodium thiosulfate, commonly called "hypo," was essential in film development.
Thiosulfate also serves as a medical antidote for cyanide poisoning and as a dechlorinating agent in water treatment: The aquarium kit includes thiosulfate to neutralize tap water chlorine.
One who resolves issues
- hypoNeedle, informally
- darkroomFilm processing chamber
- filmMovie or coating
- negativeOpposite of affirmative
emulsion · developer · washing · archival · print · gelatin · clearing · monochrome
Toxic carbon-nitrogen compound
- poisoningHarmful substance exposure
- detoxificationRemoving harmful substances internally
- intravenousInto the vein
- emergencySerious sudden danger
treatment · toxicity · neutralization · chelation · clinical · rescue · therapy · recovery
Measuring concentration by addition
- reagentSubstance prompting chemical change
- analyteSubstance being measured
- volumetricRelating to capacity measurement
- standardizationImplementing uniform technical specifications
indicator · starch · iodine · burette · pipette · stoichiometry · concentration · molarity
SO3 compound, preservative use
- polysulfideCompounds with sulfur chains
- disulfideTwo-sulfur chemical linkage
- anionNegatively charged ion
- ligandMolecule that binds centrally
Halogen disinfectant element
- aquariumTank for keeping fish
- neutralizationCanceling opposing forces
- chloramineNitrogen-chlorine disinfecting compound
- municipalOf city government
conditioner · potable · disinfection · spa · hatchery · brewing · dialysis · pond
Oxidation-preventing molecule
- antimicrobialKills or inhibits germs
- shelf-lifePeriod before spoilage
- stabilizerThing ensuring steadiness
- wineFermented grape beverage
sulfite · browning · freshness · canning · food-safety · spoilage · rancidity
fixer
One who resolves issues
negative · emulsion · developer · washing · archival · print · gelatin · clearing · monochrome · analog
cyanide
Toxic carbon-nitrogen compound
- poisoningHarmful substance exposure
- detoxificationRemoving harmful substances internally
- intravenousInto the vein
emergency · treatment · toxicity · neutralization · chelation · clinical · rescue · therapy · recovery · nitrite
titration
Measuring concentration by addition
- reagentSubstance prompting chemical change
- analyteSubstance being measured
- volumetricRelating to capacity measurement
standardization · indicator · starch · iodine · burette · pipette · stoichiometry · concentration · molarity · endpoint
sulfite
SO3 compound, preservative use
- polysulfideCompounds with sulfur chains
- disulfideTwo-sulfur chemical linkage
- anionNegatively charged ion
chlorine
Halogen disinfectant element
- aquariumTank for keeping fish
- neutralizationCanceling opposing forces
- chloramineNitrogen-chlorine disinfecting compound
municipal · conditioner · potable · disinfection · spa · hatchery · brewing · dialysis · pond
antioxidant
Oxidation-preventing molecule
- antimicrobialKills or inhibits germs
- shelf-lifePeriod before spoilage
- stabilizerThing ensuring steadiness
wine · sulfite · browning · freshness · canning · food-safety · spoilage · rancidity