Bleach scented

Liquid household bleach is generally a 5% solution of sodium hypochlorite (NaOCl). Ammonia cleansers—including general household cleansers, wax removers, glass and window cleaners, and oven cleaners — are aqueous solutions of 5-10% ammonia, NH3. Mixing bleach with cleansers containing ammonia leads to the formation of a family of potentially toxic compounds known as chloramines. These toxic gases have acrid fumes that can bum mucous membranes. Scented bleaches can mask one s natural ability to detect these harmful fumes. 

The washing-up howl is plastic too but the detergent you put in it belongs to another branch of the chemical industry—companies like Unilever (Britain) or Procter and Gamble (USA) which produce soap, detergent, cleaners, bleaches, polishes, and all the many essentials for the modern home. These products may be lemon and lavender scented but they too mostly come from the oil industry. Nowadays, most products of this kind tell us, after a fashion, what is in them. Try this example—a well known brand of shaving gel along with the list of contents on the container ... 

Bleaches use redox reactions to remove color from material (see Chapter 9 for a discussion of redox reactions). Most bleaches are oxidizing scents. The most common bleach used in the home is a 5 percent solution of sodium hypochlorite. This type of bleach is produced by bubbling chlorine gas through a sodium hydroxide solution ... 

A wide variety of technical options is used to improve the storage stability of bleach systems under alkaline conditions and to avoid negative interactions with sensitive ingredients such as enzymes, optical brighteners, or fragrances (see Section 16.3). Controlled release of these compounds, first the enzymes, followed by bleach, and last the perfume, guarantees complete soil and stain removal and adds whiteness as well as a fresh scent to the cleaned garment. 

Scent is one of the most powerful of senses. This phrase can be read in the website of one of the more remarkable associations related to perfumes, the International Fragrance Association (IFRA), and we are aU aware that this is true. Scent can alter mood, stress, or pain. We are not always aware of them, but odors are around us all the time and affect our daily life. People, food, plants, and everything have a particular odor, and we even add aromatic substances to many other things. Cosmetic products, such as shampoos, deodorants, soaps, and fine fragrances, or household products such as laundry detergents, cleaners, and bleaches contain perfumes (Fig. 107.1) which are responsible for their characteristic odors. Moreover, we sometimes scent the air with air fresheners or fragrance candles. 

Bleached palm oil, olive oil, castor oil and lard are also employed in the production of special milling soap bases, a palm oil soap being specially suitable for the production of a violet-scented toilet soap. 

Sodium hypochlorite bleaches possess a specific odor generally considered as a real signal of efficacy. A sizable number of consumers perceive this odor as disagreeable. In response, bleach manufacturers have tried to formulate with fragrance systems which can at least partially cover the hypochlorite odor perceived from the product as is, firom the product diluted for use, as well as in the room where the product is used. Bleach is sold as scented solutions in which the ingredients of the composition are carefully selected in order to be stable in the presence of sodium hypochlorite. 

In particular, current scented bleach is formulated with fragrances chosen for their chemical compatibility not only with hypochlorite but also with high levels of alkalinity. 

Because of its chemical reactivity, sodium hypochlorite reduces the number of fragrance components available to the perfume creator. Nevertheless, technical progress and CTeativ-ity still continue to advance and new scents are appearing on the European market the launch of a commercial bleach with a layender-fresh scent in 1995 is a specific example. The patent literature also refers to other surfactants (e.g., betaine) [6]. 

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