NATURE REPUBLIC SOOTHING&MOISTURE ALOE VERA SOOTHING GEL by Yuki Yu https://padlet.com/YukiYu/Yuki You have to believe in yourself. That’s the secret of success. —— Charles Chaplin en-us 2019-05-08 06:44:17 UTC 2025-12-24 20:59:24 UTC hello@padlet.com https://padlet.net/icons/png/1f9ea.png Features & Function YukiYu https://padlet.com/YukiYu/Yuki/wish/357929675 Features: deep moisturizing dry relieving desalt blain to imprint.
Function: contains ninety-two percent pure natural aloe essence powerful hydrating 
1, deep moisturizing, moisturizing, adjust grease;
2, calm soothing sensitive skin;
3, enhance the elasticity, relieve dry skin.
]]> 2019-05-08 07:00:52 UTC https://padlet.com/YukiYu/Yuki/wish/357929675 Phenoxyethanol (1) YukiYu https://padlet.com/YukiYu/Yuki/wish/357934276
  • Phenoxyethanol is an organic compound commonly used in skin care products. It can be etherified by ethylene glycol and phenol and is commonly found in skin care and sunscreen. Phenoxyethanol is a colorless oily liquid with antibacterial activity (usually used in conjunction with quaternary ammonium salts) and is often used as a substitute for highly toxic sodium azide in biological buffers because phenoxy alcohol is less toxic. And chemically inactive to copper and lead. Preservatives are commonly used in cosmetics, skin care products, vaccines and medicines.
  • Phenoxyethanol is stable under80℃, and pH is stable and effective at 3 ~ 10. It can be mixed with anionic and cationic surfactants, and will be inactivated in iethoxy compounds. Easy to add to all kinds of formulas, because of certain emulsification, the viscosity of the product is greatly affected. Phenoxy ethanol preservative mechanism is to cause microbial membrane permeability loss, resulting in cell content exudate, loss of electron power produced by the energy. The inhibition of bacteria and fungi is weak. Short-chain p-hydroxybenzoate, such as methyl ester, propyl ester, or polyol, is usually combined with short-chain p-hydroxybenzoate in order to achieve broad-spectrum bacteriostatic effect. In view of the complex formula of aldica nutrition, it is suggested that phenoxyethanol should be reduced, and the compound short chain p-hydroxybenzoate should be mixed with multiple short chain p-hydroxybenzoate. In order to reduce the burning of skin caused by phenylethyl alcohol or to combine with traditional preservatives such as bis hydroxymethyl imidazolidinylurea and IPBC to enhance the overall preservative ability of the formulation. Phenoxyethanol is a low skin sensitive preservative and the most widely used preservative in cosmetics. It can affect the "TRPV1 sensor" of human skin cells (the structure of the skin used to sense changes in the environment), causing people to produce heat "or slightly" broadcast H, Irritating to the eye. Phenoxyethanol has been used since 1982. Only in 2012, SCCSNEP received a risk assessment application from France) to recommend a maximum dose of 0.4% of care products for children under the age of three. And can not be used in the department of care products for children under three years of age. At present, EU regulations on phenoxy ethanol remain unchanged at a maximum allowable dose of 1.0%.
    • ]]>     2019-05-08 07:26:08 UTC https://padlet.com/YukiYu/Yuki/wish/357934276     Phenoxyethanol (2) YukiYu https://padlet.com/YukiYu/Yuki/wish/357997394
  • Classified as: organic compounds. 
  • Chemical formula: C8H10O2. 
  • Molar mass: 138.16 g ·mol. 
  • Density: 1.102 g/cm.
  • Melting point: 11-13 °C. 
  • Boiling point: 247 °C (245 ℃).
  •  Preparation method: phenoxyethanol, which can be prepared by mixed chemical reaction of phenol sodium and chloroethanol.（C6H5ONa+CH2ClCH2OH→C6H5OCH2CH2OH=NaCl）
  •  Application: phenoxyethanol, which can be used as fixing agent in perfume, insect repellent, disinfectant for external use, cellulose acetate solvent, dye, ink, resin, preservative and other medical applications. It is also used as an anesthetic for fish in aquaculture. Is also listed by the United States Centers for Disease Control and Prevention as a component of a variety of American vaccines. In Japan, the use of phenoxyethanol in cosmetics is monitored. 
  • Pharmacological effects: phenoxyethanol, as a drug for surgical use; antiseptic drugs-alcohols. This product has a strong killing effect on Pseudomonas aeruginosa, and weak effect on other gram-negative and positive bacteria. Its 2% solution or emulsion can be used to treat the surface trauma, burns and abscess of Pseudomonas aeruginosa infection.
  • Toxicity analysis: phenoxy ethanol is currently a standard preservative compound, generally does not release formaldehyde, which is now generally considered harmful to the human body. Phenoxy ethanol is indeed a better alternative to these formaldehyde-releasing compounds.
    • ]]>     2019-05-08 12:05:28 UTC https://padlet.com/YukiYu/Yuki/wish/357997394     Triethanolamine (2) YukiYu https://padlet.com/YukiYu/Yuki/wish/358002146
  • Chemical formula: C6H15O3N. 
  • Relative molecular weight: 149.19.
  • Structured:N(CH2CH2OH)3
  • Molecular weight: 149.1882. 
  • Boiling point (℃, 101.3kPa): 360. 
  • Melting point (℃): 21.2.
  •  Chemical properties: the alkalinity of triethanolamine is weaker than that of ammonia (pKa7.82) and has the properties of tertiary amine and alcohol. It reacts with organic acid to form salt at low temperature and ester at high temperature. A chelate of four ligands formed with a variety of metals. Amine oxide is formed when oxidized with hypochlorite. Oxidative decomposition of ammonia and formaldehyde with periodate. Morpholine ethanol was formed by reaction with sulfuric acid. Triethanolamine can absorb acid gas at low temperature and release at high temperature.
    • CH3(CH2)16COOH+(HOCH2CH2)3N→CH3(CH2)16COO-N+H(CH2CH2OH)3
    • Toxicological data: 1, acute toxicity: oral toxicity in amines was the lowest, while oral LC50:8680mg. in LD50:9110mg; mice was the lowest in rats. 2, stimulus data: skin-rabbit 560 mg / 24 h mild; eye-rabbit 20 mg heavy. 3. Inhalation poisoning is less likely, but dermatitis and eczema can be seen on the back of the hand and forearm if the product is contaminated and exposed.
    •  Ecological data: the substance is slightly harmful to water. Triethanolamine is irritating to the eye, but weaker than monoethanolamine, and has little irritation to the skin.
    ]]>     2019-05-08 12:22:22 UTC https://padlet.com/YukiYu/Yuki/wish/358002146     Triethanolamine (1) YukiYu https://padlet.com/YukiYu/Yuki/wish/358006480
  •  Triethanolamine is a colorless to yellowish transparent viscous liquid with slightly ammonia flavor and becomes colorless to pale yellow cubic crystal at low temperature. The color gradually darkens when exposed to the air. Soluble in water, ethanol, acetone, glycerol and ethylene glycol, slightly soluble in benzene, ether and carbon tetrachloride, etc., almost insoluble in nonpolar solvents. Solubility at 5 ℃: benzene 4.2%, ether 1.6%, carbon tetrachloride 0.4%, N-heptane is less than 0.1%. The pH of aqueous solution of 0.1mol/L is 10.5. It is irritating. Have hygroscopicity. It can absorb acid gases such as carbon dioxide and hydrogen sulfide. Pure triethanolamine has no effect on steel, iron, nickel and other materials, but corrosive to copper, aluminum and its alloys. Different from monoethanolamine and diethanolamine, triethanolamine can precipitate with (HI). Combustible. Low poison. Avoid contact with oxidants, acids. It is a widely used chemical raw material, used as a non-carbon black reinforced rubber vulcanization active agent, oil and wax emulsifier, metal cutting coolant, rust inhibitor, cement early strength agent, neutralization agent, acid gas absorbent, Daily chemical products wetting agent, etc.

    • ]]>     2019-05-08 12:34:26 UTC https://padlet.com/YukiYu/Yuki/wish/358006480     Propylene glycol (1) YukiYu https://padlet.com/YukiYu/Yuki/wish/358272219
  •  The composition indicates that 1.2-propanediol is derived from the petroleum source of propylene oxide and is a small molecular moisturizing component. Is a kind of polyol. Almost colorless, no greasy, and dissolved in water, but also anticorrosive. Propanediol is highly permeable as a moisturizer, which can help other components to spread and infiltrate on the surface of the skin, but the proportion of water capture when used as moisturizer. The addition of propylene glycol is controversial, in general cosmetics, the proportion of propylene glycol addition will not exceed 5%, a few people use skin will produce prickly heat, the United States FDA believes that propylene glycol is a safe use of cosmetic crystal ingredients, the United States of America FDA believes that propylene glycol is a safe use of cosmetic ingredients. But sensitive skin avoids the use of this ingredient, and healthy skin does not have to worry too much.
  •  Propanediol is miscible with water, ethanol and a variety of organic solvents. Propylene glycol can be used as raw material of unsaturated polyester resin. Used as wetting agents in cosmetics, toothpaste and soap with glycerin or sorbitol. Used in hair dyes as humidifiers, homogenizers, antifreeze agents, cellophane, plasticizers, and pharmaceutical industries.
    • ]]>     2019-05-08 23:07:54 UTC https://padlet.com/YukiYu/Yuki/wish/358272219     Propylene glycol (2) YukiYu https://padlet.com/YukiYu/Yuki/wish/358273337
  • Relative molecular weight: 76.09 
  • Boiling point: 188.2 ℃ 
  • Melting point:-59 ℃ 
  • Viscosity: (20 ℃) 60.5mpa.s
  • Chemical Formula: CH2OHCHOHCH3 (C3H8O2)
    •  First aid method: 1. Inhale: move to fresh air and rest. 2. Skin contact: take off contaminated clothes and rinse the skin or shower with a lot of water. 3. Eye contact: open your eyes, rinse them with flowing water for 10 minutes, and then consult a doctor. This product is combustible and should be kept away from the source of fire. Can use dry powder, anti-soluble foam, fog water, carbon dioxide and other fire extinguishing devices.
    1、
    CH3CHBrCH3+NaOH→
    CH2=CHCH3+NaBr+H2O
    2、
    CH2=CHCH3+Br2→
    CH2BrCHBrCH3 
    3、CH2BrCHBrCH3+2NaOH→CH2OHCHOHCH3+2NaBr
    • Toxicology: 1, toxicity classification: low toxicity. 2, acute toxicity: oral-rat LD50: 20000 mg / kg; oral-mouse LC50: 32000 mg / kg. 3, stimulation data: eyes-rabbits 100 mg mild 4, belonging to low toxicity. The toxicity and irritation are very small. Hemolytic, should not be used for intravenous injection. When added to food and drink, it is as dangerous as ethylene glycol to cause kidney disorders. As a result, some countries have banned their use in the food industry. Acute toxicity oral: expected low toxicity: LD50 > 2000 mg, mouse. Acute toxicity was predicted to be low toxicity: LD50 > 2000 mg, mouse. Acute toxic inhalation: low toxicity, LC50 higher than near saturated steam concentration. Skin irritation or corrosion: does not irritate the skin; the eyes are irritated or corroded and basically do not irritate the eyes. Respiratory / skin allergy, non-skin sensitizer. Gene cell mutagenicity: no mutagenicity. Carcinogenicity: it has not been shown to be carcinogenic in animal trials. Reproductive toxicity: non-developmental poison. It does not affect fertility.
    ]]>     2019-05-08 23:15:11 UTC https://padlet.com/YukiYu/Yuki/wish/358273337     References YukiYu https://padlet.com/YukiYu/Yuki/wish/358279910 Features & Function：
    https://www.douban.com/note/460717339/
    https://iask.sina.com.cn/b/iR6OtGC0grFj.html
    Triethanolamine：
    http://www.basechem.org/chemical/1319
    Phenoxyethanol:
    https://baike.so.com/doc/5721546-5934276.html
    http://www.docin.com/p-556806759.html
    Propylene glycol:
    （wyc,2013.07.19）https://wenda.so.com/q/1373599063062148
    https://baike.so.com/doc/4861275-7117355.html
    http://sh.qihoo.com/pc/9c94596e5724aad66?cota=4&tj_url=so_rec&sign=360_e39369d1&refer_scene=so_1]]>     2019-05-08 23:51:35 UTC https://padlet.com/YukiYu/Yuki/wish/358279910