GLOVE

According to NPA Chemical Repository suggestions for di-(2-ethylhexyl) phthalate. Minimum Protective Clothing is Tyvek-type disposable protective clothing or disposable Tyvek-type sleeves taped to gloves. Reqirirements for other plasticizers will be similar. 

The first requirement in the selection of a glove is that the materials from which gloves are produced are not dissolved or swollen by plasticizers. This alone is not sufficient. The other important requirement in glove selection is permeability of all of the materials in its stractiue. Permeabihty is measured according to ASTM Standard F 739 or Eiuopean Standard EN 374. Permeability results are usually expressed in mg of permeate 

European standard classifies gloves according to their breakthrough times as follows  

American National Standard provides guidance for selecting suitable gloves that will protect workers and assist employers in compliance with OSHA Regulation 29 CFR 1910. The standard covers glove selection criteria in specific categories related to testing and performance properties in chemical and industrial applications, such as cut method puncture resistance abrasion 

It should be borne in mind that protective clothing is not universal for all chemical materials. For this reason, protection against one penetrant does not suggest that the glove has protecting qualities against the other materials. Mixtures of plasticizers behave in a different marmer than do its pure components. The temperature at which exposure occurs is also an important factor. Generally as temperature increases, permeability increases. 

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Dry Ice should be handled with gloves or with a dry towel if Dry Ice is held for a long time in the hand, it may cause frost bite. 

GA UTION. Styrene dibromide is a skin irritant and all contact with It should be avoided. Rubber gloves should be used in its preparation. 

It is reported that mild carbon steels may be effectively protected by as little as 55 ppm of KTc04 in aerated distilled water at temperatures up to 250oC. This corrosion protection is limited to closed systems, since technetium is radioative and must be confined. 9sTc has a specific activity of 6.2 X lOs Bq/g. Activity of this level must not be allowed to spread. 99Tc is a contamination hazard and should be handled in a glove box. 

Cleaning flasks. Flasks, specially distilling flask are really dirty, with a brown black semisolid tar. It s easy to clean them. Make a 25 % or stronger NaOH solution (from drugstore, of course), put it in the flask and heat, till boiling if necessary, all tar go out easy. Use gloves, please. 

Bromosuccinimide - easily purchased but I could only find one grade, ft s a very fluffy light orangy crystalline powder - use gloves and a mask, because bromine is VERY nasty. 

CAUTION This compound is EXTREMELY EXPLOSIVE and HIGHLY TOXIC I am not exaggerating Do not, under ANY circumstances, allow the acid to heat above room temperature (bp 37C). Use latex gloves to handle, and dispose of small quantities using plenty of water followed by dilute baking soda/water. 

Warning Use rubber gloves, the product causes blisters on the skin. 

Caution-. Use rubber gloves during the work-up, the allenyne alcohol probably is a skin irritant. 

The difference m odor between (R) and (S) carvone results from their different behavior toward receptor sites m the nose It is believed that volatile molecules occupy only those odor receptors that have the proper shape to accommodate them Because the receptor sites are themselves chiral one enantiomer may fit one kind of receptor while the other enantiomer fits a different kind An analogy that can be drawn is to hands and gloves Your left hand and your right hand are enantiomers You can place your left hand into a left glove but not into a right one The receptor (the glove) can accommodate one enantiomer of a chiral object (your hand) but not the other... 

Acetic anhydride penetrates the skin quickly and painfully forming bums and bUsters that are slow to heal. Anhydride is especially dangerous to the deUcate tissues of the eyes, ears, nose, and mouth. The odor threshold is 0.49 mg/m, but the eyes are affected by as Httie as 0.36 mg/m and electroencephalogram patterns are altered by only 0.18 mg/m. When handling acetic anhydride, mbber gloves that are free of pinholes are recommended for the hands, as well as plastic goggles for the eyes, and face-masks to cover the face and ears. 

Acetone can be handled safely if common sense precautions are taken. It should be used in a weU-ventilated area, and because of its low flash point, ignition sources should be absent. Flame will travel from an ignition source along vapor flows on floors or bench tops to the point of use. Sinks should be rinsed with water while acetone is being used to clean glassware, to prevent the accumulation of vapors. If prolonged or repeated skin contact with acetone could occur, impermeable protective equipment such as gloves and aprons should be worn. 

Acrolein is highly toxic by skin absorption. Brief contact may result in the absorption of harmful and possibly fatal amounts of material. Skin contact causes severe local irritation and chemical bums. Poly(vinyl chloride) coated protective gloves should be used (99). 

Skin redness and from slight to corrosive irritation is caused by direct contact. Acryhc acid is more corrosive than esters. The monomers not only irritate the skin, but may also be absorbed through the skin. Therefore, gloves and protective clothing and shoes or boots should be used in addition to eye (or hiU face) protective equipment. Upon contact, the skin should be flushed with copious amounts of water foUow-up medical attention should be sought. Medical attention should also be obtained if any of the earlier mentioned symptoms appear. 

Gloves. The clove spice is the dried unopened buds of the evergreen tree, Eugenia caryophyllus Thumb (Myrtaceae). This tree is also called Sj gium aromaticum L. Other botanical names are used, but some discrepancies exist as to the proper nomenclature. The tree is indigenous to the Molucca Islands. 

Fluorine, the most reactive element known, is a dangerous material but may be handled safely using proper precautions. In any situation where an operator may come into contact with low pressure fluorine, safety glasses, a neoprene coat, boots, and clean neoprene gloves should be worn to afford overall body protection. This protection is effective against both fluorine and the hydrofluoric acid which may form from reaction of moisture in the air. 

Experimentation with test animals and laboratory and plant experience indicate that the fluorophosphoric acids are less toxic and dangerous than hydrogen fluoride (58). However, they contain, or can hydrolyze to, hydrofluoric acid and must be treated with the same care as hydrofluoric acid. Rubber gloves and face shields are essential for all work with these acids, and full mbber dress is necessary for handling larger quantities. The fumes from these acids contain HF. 

Health and Safety Factors and Regulations. Iodine is much safer to handle at ordinary temperatures than the other halogens because iodine is a soHd and its vapor pressure is only 1 kPa (7.5 mm Hg) at 25°C, compared to 28.7 kPa (215 mm Hg) for bromine and 700 kPa (6.91 atm) for chlorine. When handling properly packed containers, usual work clothes are sufficient. In the handling of soHd, unpacked iodine, mbber gloves, mbber apron, and safety goggles are recommended. Respirators or masks are also recommended. 

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