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Send EmailParaffin Wax, 155F, HNP, 155WAX, Hydrophobol APK, Cirebelle 107, Bareco PX 105, Cirebelle 104, Cirebelle 109, 8002-74-2,308069-08-1
paraffin
CAS: 8002-74-2;308069-08-1
Molecular Formula: C21H27NO3
Names and Identifiers
Physico-chemical Properties
| Molecular Formula | C21H27NO3 |
| Molar Mass | 341.44398 |
| Density | 0.82g/mLat 20°C |
| Melting Point | 58-62°C ((ASTM D 87)) |
| Boling Point | 322 °C |
| Flash Point | 113°C |
| Solubility | Soluble in chloroform, ether, volatile oils, and mostwarm fixed oils; slightly soluble in ethanol; practically insoluble in acetone, ethanol (95%), and water. Paraffin can be mixed withmost waxes if melted and cooled. |
| Appearance | extra-low viscosity |
| Color | white |
| Odor | odorless |
| Storage Condition | Store below +30°C. |
| Explosive Limit | 0.6-6.5%(V) |
| Refractive Index | n20/D 1.45 |
| MDL | MFCD00132833 |
| Physical and Chemical Properties | White, hard block at room temperature. Translucent. The wax can turn yellow under the influence of ultraviolet light. Crystal structure. Almost tasteless and odorless. She has smooth feeling. Soluble in ether, petroleum ether, benzene and volatile oil, insoluble in water and ethanol, ethanol-soluble. Relative density of 0.88~0.915, flammable. |
| Use | GB 2760-96 is permitted for use as a base of gum with a limit of 50.0g/kg. Foreign also for the production of sticky rice paper, the amount of 6 g/kg. In addition, it is widely used in food packaging materials such as moisture-proof, anti-stick and oil-proof. Suitable for food chewing gum, bubble gum and drug gold oil and other components as well as heat carrier, demoulding, tablet, waxes for direct contact with food and drugs, such as polishing, are made from waxy fractions of petroleum or shale oil by methods such as cold pressing. |
Risk and Safety
| WGK Germany | - |
| RTECS | RV0350000 |
| HS Code | 27101999 |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 3600 mg/kg |
Upstream Downstream Industry
| Raw Materials | Hydrogen |
Nature
colorless to white translucent mass, tasteless, odorless, with smooth feeling. Soluble in ether, chloroform, benzene, petroleum ether, volatile oil or a variety of fatty oils, slightly soluble in ethanol. Chemical stability, not with acid, alkali, oxidant, reducing agent reaction, under ultraviolet irradiation will turn yellow color, can burn and decomposition.
Preparation Method
oil-containing wax is used as a raw material, and is deoiled by sweating or solvent, and then refined by hydrorefining or clay to obtain paraffin wax for food.
Standard
This line is a mixture of various solid hydrocarbons obtained from petroleum or shale oil.
Trait
- This product is a colorless or white translucent block, often crystalline structure; Odorless, tasteless; Finger contact with a smooth feeling.
- This product is dissolved in chloroform or ether, and is almost insoluble in water or ethanol.
melting point
The melting point of this product (General rule 0612 second method) is 50~6 5 1.
Introduction
There's a slippery feeling. Soluble in benzene, ether, chloroform, oil and carbon disulfide, insoluble in water and ethanol. Transparent and clear when melted.
Use
was used as a coating. China's provisions can be used as a gum base for food chewing gum, bubble gum, etc., the maximum use of 50 g/kg.
Differential diagnosis
- take this product, strengthen the heat, that is, the combustion of bright flame, and the residue of carbonization.
- take about 0 .5g of this product, put it in a dry test tube, add an equal amount of sulfur, and then heat it to generate the odor of hydrogen sulfide and charring it.
Exam
Authoritative Data Verified Data
pH
take about 5.0g of this product, heat and melt, add equal volume of neutral hot ethanol, shake, static to make stratification; Ethanol solution should show neutral reaction when it meets litmus test paper.
easily carbonized
take 4.0g of this product, place it in a test tube, melt it in a water bath at 65-70°C, and add 5ml of 95% (g /g) sulfuric acid, and maintain this temperature for 10 minutes, every 1 minute strong shaking for several seconds, 1 0 minutes to take out, the goods should not be dyed; Sulfuric acid layer such as color, and the control liquid (take the gasification cobalt liquid 0.8, colorimetric, 0.3 of copper sulfate solution for color comparison and potassium dichromate solution for color comparison 1 .0M l with water 2 .9M l mixed made) comparison, not deeper.
sulfide
take 4.0g of this product, add 2 drops of sodium hydroxide solution (1-5) of saturated lead oxide, add ethanol for 2 m h, shake well, heat in 70X: water bath for 10 minutes, at the same time, after shaking and cooling, do not appear black and brown.
polycyclic aromatic hydrocarbons
take this product 0 .5G, precision weighing, placing in the separatory funnel, adding 25ml of n-hexane to shake to dissolve, then adding 5ml of dimethyl sulfinic acid accurately, shaking vigorously for 2 minutes, and allowing to stand to separate layers, transfer the dimethyl sulfoxide layer to another separatory funnel, add n-hexane 2M l, shake and wash, and then stand to make the layer separated (centrifuge if necessary), and separate the dimethyl methylene layer as a test solution; in addition, 2 5 m l of n-hexane was added into a separatory funnel, and 5ml of dimethyl sulfoxide was added precisely. The mixture was shaken vigorously for 2 minutes, and then left to stand to make the layer separated, according to ultraviolet-visible spectrophotometry (General rule 0401), the absorbance is measured in the wavelength range of 260 ~ 350nm, and the maximum absorbance shall not exceed 0.10.
Category
pharmaceutical excipients, ointment matrix and coating materials.
Storage
sealed storage.
Reference Information
| FEMA | 3216 | PARAFFIN WAX |
| Overview | Paraffin (Paraffin) is derived from petroleum, A mixture of hydrocarbons extracted from certain distillates of shale oil or other bitumen mineral oils, the main component of which is a solid alkane, odorless, tasteless, white or yellowish translucent solid. Paraffin is a mixture of N-chain saturated alkanes of different molecular weights and can be represented by the general formula CnH2n 2. According to the physical state of paraffin, it can be divided into three categories: liquid paraffin, solid paraffin and microcrystalline wax. Paraffin has many advantages, such as low price, wide source, colorless and tasteless, stable physical and chemical properties, large latent heat of phase change and so on. Therefore, it is widely used in medicine, packaging, construction, military camouflage, in recent years, there have been many researches on composite phase change energy storage materials in the fields of industry and agriculture. |
| performance metrics | 1. Melting point paraffin wax is a mixture of hydrocarbons, so it does not have a strict melting point as pure compounds. The melting point of paraffin is the temperature at which the melting sample of paraffin is cooled under the specified conditions, and the lag phase occurs for the first time on the cooling curve. A variety of wax products are required to have good temperature resistance of paraffin, that is, at a specific temperature does not melt or soften deformation. Commercial paraffins are required to have a range of different melting points, depending on the conditions of use, the region and season of use, and the environment in which they are used. The main factor affecting the melting point of paraffin is the weight of the selected raw material fraction, and the melting point of paraffin removed from the heavier fraction is higher. In addition, the oil content has a great influence on the melting point of paraffin, the more oil in paraffin, the lower the melting point. 2. Oil content oil content refers to the amount of low melting point hydrocarbons contained in paraffin. High oil content will affect the paraffin color and storage stability, but also make it lower hardness. Therefore, the oil-containing wax extracted from the vacuum fraction needs to be deoiled by sweating or solvent method to reduce its oil content. However, it is desirable for most paraffin wax products to contain a small amount of oil, which is advantageous for improving the gloss and release properties of the product. 3. Stability paraffin products in the shape or coating process, long-term hot melt state, and contact with the air, if the stability is not good, it is easy to Oxidative deterioration, color darkening, and even odor. In addition, when used under light conditions, paraffin also turns yellow. Therefore, paraffin is required to have good thermal stability, oxidation stability and photostability. The main factor affecting the stability of paraffin wax is the trace amount of non-hydrocarbon compounds and polycyclic aromatic hydrocarbons. In order to improve the stability of paraffin, it is necessary to deeply refine the paraffin to remove these impurities. |
| production process | 1. Dewaxing. That is, the wax is separated from the wax-containing oil. Oil-containing paraffin can be obtained by cold-pressing dewaxing or Solvent dewaxing, and liquid wax can be obtained by dewaxing with molecular sieve or urea. 2. Deoiling. The oily wax is treated by sweating or solvent deoiling, and the oil in the paraffin can be removed. 3. Refinement. The deoiled paraffin was refined with white clay to obtain white paraffin. 4. Molding. The high-melting-point paraffin wax was processed into a block-like commercial product by a molding machine. |
| encapsulation method | 1. Direct incorporation method. The Paraffin wax is added directly to the substrate. This method is convenient to control the amount of addition, but it is easy to appear phase separation. 2. Immersion absorption method. Paraffin wax was absorbed with a porous substrate for encapsulation. 3. Container package hair. It is divided into macro packaging and micro packaging. |
| Main application | 1. Application in the field of packaging. Paraffin wax can improve the smoothness, toughness and printing quality of packaging materials, and can reduce the production cost. Therefore, it is often used as papermaking sizing agent and waterproof and oil-proof coating. 2. Application in the field of industry and agriculture. Paraffin wax has been widely used in rubber, textile, investment casting, plastic and electronic industries. It can be used as an anti-aging agent, softening agent, toughening agent and release agent for rubber, and can also be used as a gloss finishing agent, a softening agent, a wax dye barrier, a water repellent and a water repellent for textile fabrics. 3. Application in the field of medicine. In the field of medicine is the most widely used liquid paraffin. Liquid paraffin is an oily organic matter with strong cohesion, which is insoluble in water and cannot be saponified. It has good transparency, easy flow, no biological toxicity, and is similar to that of biological glue. 4. Application in the field of architecture. In building materials, phase change paraffin is mainly used in phase change energy storage gypsum board, phase change energy storage concrete, building thermal insulation material, phase change energy storage mortar and phase change heat storage floor and ceiling. 5. Application in the field of military camouflage. The characteristics of paraffin phase change materials have broad application prospects in thermal infrared camouflage and thermal infrared false target. |
| toxicity | a large number of long-term use can lead to loss of appetite, reduced absorption of fat-soluble vitamins, and the occurrence of digestive system disorders. When not pure, the residual sulfide and polycyclic aromatic hydrocarbons are harmful to health. A small amount of several non-toxic. ADI includes low melting point and medium melting point paraffin, so the amount of reagent is toxic, so the original regulations are canceled (FAO/WHO,2001). It can be used safely in food (FDA, § 172, 2000). |
| Main references | [1] Liu Guanglong, Yang Hongwei, Miao Jianrong, etc. Study on the application and properties of paraffin wax [J]. Contemporary Chemical Engineering, 2012, 29 (10): -1137. [2] Hu Xiaodong, senior student, Li Derun, etc. Properties of paraffin/expanded graphite shape-stabilized phase change materials [J]. Journal of Chemical Engineering, 2013, 64(10):3831-3837. [3] Liu Xing, Liu Hongyan, Wang Shujun. Encapsulation and thermal properties of paraffin-embedded phase change materials [J]. Fine Chemicals, 2006, 23(1):8-11. [4] Xu Chunming, Yang Chaohe, Lin Shixiong. Petroleum Refining Engineering (fourth edition). Beijing: Petroleum industry Press, 2010:P155. [5] Wang Xiaopeng, Zhang Yi, Li Dongxu. Research and Application progress of paraffin in phase change energy storage [J]. Materials Review, 2010, 24(S2):307-312. |
| Use | GB 2760-96 allows for the use of gum base with a limit of 50.0g/kg. Foreign also for the production of sticky rice paper, the amount of 6 g/kg. In addition, it is widely used in food packaging materials such as moisture-proof, anti-stick and oil-proof. as a film covering agent, China's provisions can be used as a gum base, the maximum use of 50g/kg. used in rubber products, canopy canvas, matches, etc. used in the production of synthetic fatty acids and higher alcohols, also used in the manufacture of matches, candles, wax paper, waterproofing agents, ointment, etc. used for crayons, wax paper, telecommunications equipment, light industry and chemical raw materials, wax model crafts, etc. used as Cosmetics raw materials, also used for capacitors, electronic components, white paraffin wax is mainly used as candles, crayons, wax paper, matches, general telecommunications equipment, rubber products, polishing paste and other chemical raw materials. Fine paraffin is suitable for the production and precision casting of high frequency porcelain, carbon paper, Iron Pen wax paper, cold frost and other products. Food paraffin is suitable for food and oral medicine components and demoulding, tableting, lighting, etc. Food including paraffin is suitable for the coating and impregnation of the solvent and packaging materials in contact with food. GB 2760-96 is permitted for use as a base of gum, with a limit of 50.0g/kg. Foreign also for the production of sticky rice paper, the amount of 6 g/kg. In addition, it is widely used in food packaging materials such as moisture-proof, anti-stick and oil-proof. Suitable for food chewing gum, bubble gum and drug gold oil and other components as well as heat carrier, demoulding, tablet, waxes for direct contact with food and drugs, such as polishing, are made from waxy fractions of petroleum or shale oil by methods such as cold pressing. |
| production method | the lubricating oil fraction obtained by regular vacuum distillation of crude oil is used as the raw material, and the Solvent dewaxing deoiling or traditional pressing dewaxing, the semirefined paraffin (white paraffin) is obtained by sweating and deoiling process, and then by white clay or hydrorefining. The processing depth is deeper, and the whole refined paraffin (refined paraffin), food paraffin, etc. are obtained. products made from waxy fractions of petroleum or shale oil by methods such as cold pressing. A mixture of paraffin hydrocarbons synthesized from carbon monoxide and hydrogen by contact in the Fischer-Tropsch process (Rscher-Tropsch process), with the low molecular weight fraction removed by distillation, other fractions were obtained by hydrogenation and further Diafiltration with activated carbon. Made from waxy fractions of petroleum or shale oil by methods such as cold pressing. |
| category | combustible solid |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: > 5000 mg/kg |
| stimulation data | Skin-rabbits were mild at 500 mg/24 h; eyes-rabbits 100 mg/24 h mild |
| flammability hazard characteristics | flammable; Spicy and irritating smoke released from fire scene |
| storage and transportation characteristics | warehouse low temperature, ventilation, dry |
| extinguishing agent | water, carbon dioxide, dry powder, sand |
| Occupational Standard | TWA 2 mg/m3; Tel 4 mg/m3 |
| spontaneous combustion temperature | >300°C |
