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Technical chemical guides, safety references, product comparisons and industry insights from the Alliance Chemical team.
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Yes, 3% hydrogen peroxide removes blood stains from white and colorfast fabrics. Rinse the stain with cold water first, because hot water cooks the protein into the fibers. Then apply a few...
Use distilled water in a humidifier, especially an ultrasonic or impeller (cool-mist) model. The US EPA says to use low-mineral water such as distilled; it rates deionization and reverse osmosis as removing...
Sulfites are salts of sulfurous acid, such as sodium metabisulfite (Na₂S₂O₅), that release sulfur dioxide (SO₂) in acidic food and wine. Wine labels say “Contains sulfites” because a 1987 US rule requires...
Lead-acid batteries die in winter for two reasons: cold cuts the capacity they can deliver, and a partly discharged battery can freeze. Trojan Battery rates a deep-cycle battery at about 50% of...
Not reliably. Baking soda and vinegar react with each other, not with the clog: the fizz is the two cancelling out into sodium acetate, water and carbon dioxide gas, and what is...
Hydrofluoric acid (HF) is hydrogen fluoride dissolved in water. It is a weak acid (pKa 3.17), yet it is one of the most dangerous acids in industrial use. Because so little of...
Chloramine gas is the toxic vapor that forms when bleach (sodium hypochlorite) and ammonia are mixed. Never mix them. The bleach reacts with ammonia to form monochloramine (NH2Cl) plus sodium hydroxide: NaOCl...
Isopropyl alcohol (propan-2-ol, CAS 67-63-0) does not spoil. Sealed in its original container it is chemically stable for years. The expiration date on a drugstore bottle of rubbing alcohol exists because that...
Methanol (CH3OH, CAS 67-56-1) burns with a weak, pale blue flame that is nearly invisible to the naked eye in daylight. Hydrocarbon fuels burn yellow because their flames make soot, tiny carbon...
New Orleans gets all of its drinking water from the Mississippi River, which drains 41% of the lower 48 states. The Sewerage and Water Board of New Orleans (SWBNO) cleans it up...
The Hypo helmet was the first gas mask issued in bulk to British and Canadian troops in the First World War. It was a flannel hood soaked in a solution of sodium...
Alliance Chemical is a chemical supplier in Taylor, Texas, founded in 1998, that sells to research labs, small shops, plants and corporate procurement on four standing terms: no order minimums, prices listed...
Polyester is almost always polyethylene terephthalate (PET), a plastic made by joining two raw materials: purified terephthalic acid (PTA) and monoethylene glycol (MEG), the same ethylene glycol molecule used in antifreeze. Each...
The Bell Rocket Belt was a one-man flying pack built by Bell Aerosystems for the U.S. Army, flown untethered for the first time by engineer Harold Graham on April 20, 1961. It...
n-Butyl acetate (CAS 123-86-4, CH3COO[CH2]3CH3, molecular weight 116.2) is a medium-evaporating ester solvent used in coatings, inks, adhesives and industrial cleaning. It is also the industry’s reference liquid for relative evaporation rate:...
Freedom 7, the flight that made Alan Shepard the first American in space on May 5, 1961, was launched by a Mercury-Redstone rocket burning ethyl alcohol (ethanol, CAS 64-17-5) diluted with roughly...
Banana oil is the common name for isoamyl acetate (CAS 123-92-2, 3-methylbutyl acetate, C7H14O2, MW 130.18) - the ester that carries most of the smell of a ripe banana. It is not...
Water expands by about 9% when it freezes (USGS). In the winter of 1784–85 Major Edward Williams of the Royal Artillery filled 13-inch iron mortar shells with water at Quebec: the ice...
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