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 Posted: Sun 5:26, 08 May 2011 Post subject: ed hardy vaatteet How to identify poisonous food p |
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How to identify poisonous food packaging
Bag, to be used to dress the food, not knowing which is very harmful to human health, such as polyvinyl chloride PVC is toxic though non-toxic. But in the process of making plastics. Joined the plasticizer dibutyl phthalate and dioctyl phthalate ester = carboxylic acid are toxic, filled the main stabilizer added is lead stearate, are also toxic, easy to cast such a lead salt precipitation, once entered the body will result in savings of poisoning. So when the packaged food. Must use a special food bags, and note the following: 1. PVC products such as solvents ethyl ether and ethanol precipitation when exposed to lead salt, so use PVC plastic food storage units are not suitable for alcohol 2. PVC oil-food case, one of the lead dissolved will move people food 3. PVC temperature higher than 50 ℃, it will slowly release HcI gas that is harmful to human health 4. Bakelite (Bakelite) and electric Jade (urea-formaldehyde plastic) at higher temperatures, will produce harmful free single pension, phenol, formaldehyde, urea and other toxins, it is not appropriate as food packaging and the bowl of a 5. Waste [at recycling plastic products, complex sources of raw materials, and therefore not suitable for food packaging use. Daily use of plastic packaging is generally not filled with additives, such as polyethylene spring ethylene, polypropylene. Use of these materials food bags, oil drums, snack and other non-toxic. In the commonly used plastic products in how to identify whether they poisonous? Its way more than lead, such as the appearance of the method, the proportion of Hao,[link widoczny dla zalogowanych], the boiling water method, burning enamel and other,[link widoczny dla zalogowanych], more simple method is burning. Are described as follows: The samples were cut out of a clamp clamp lamp ignited combustion of alcohol (such as non-alcoholic light can also be replaced with a lighted candle), then observe the burning of difficulty, from the post-fire, flame and smoke colors, combustion phenomena and the odor so we can see a comprehensive judgments on what kind of plastic. PVC: Not flammable. Jimie away from the fire, flame and smoke color to win the Ministry of green, yellow tip, fire off the gas after the stimulation of hydrochloric acid flavor. Polyethylene plastic: flammable,[link widoczny dla zalogowanych], follow-up from the fire burning. The end of the blue flame and smoke color yellow top, when there have been burning melt dripping. Polypropylene plastic paraffin smell issue: fuel, up from the fire burning,[link widoczny dla zalogowanych], flame and smoke color is orange and yellow, burning things when there have been dissolved under the drops. Petroleum odor. Polystyrene: flammable, burning up from the fire, flame orange. Well the end of black smoke into the air with black carbon,[link widoczny dla zalogowanych], a styrene odor. Bakelite (Bakelite flame + after the fire Jimie from the flame is yellow, when the expansion of burning cracks, issue of phenol shock barrel flavor. Urea-formaldehyde plastics (Xinhua jade flame from the fire after the Jimie, the flame color hair yellow. burning when the expansion cracks, issued a sharp smell of urea
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