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Chemical analysis is used to determine the content of the mixture in the sample


Equipment and chemicals


2 equipment and chemicals


Equipment


Safety Electric Stove: adjustable, be aware of leakage


Iron stand with butterfly clips


Electronic balance (0.01g): Precision instrument


Analytical balance (0.0001g): Precision instrument


Computer:


Printer


Bottle: 500mL


Ear Cleaning Ball: 60mL


Plastic measuring bucket: 1000mL


Burette: 60mm x 30mm fragile


Drier: 180cm fragile


Weighing paper: 75mm*75mm


One-time dropper: 0-5 mL


Calculator:


Timer: Can time, "hours, minutes, seconds"


Absorbent paper:


Disposable gloves: Small size


Weighing white cotton gloves: Small size


Long-sleeved acid and alkali-resistant rubber gloves: Small size


Insulating gloves: Small size


One-time use head cover: Small size


Disposable protective mask: Small size


Laboratory coat: Medium size


Hair care hat: Medium size


Safety goggles: Medium size


Micropipette rack: plastic material


Medicine Spoon: Stainless Steel 180mm


Iodine bottle: 500mL fragile


Conical flask: 300mL fragile


Beaker: 100mL, fragile


Micropipette: 25mL, 15mL, 10mL fragile


Drop bottle: 60mL fragile


Bottle: 1000ml, 500ml fragile


Flask: 20mL, 10mL fragile


Titrator: 50mL fragile


Glass rod: 20 cm fragile


Thermometer: fragile 0-100℃


Chemical substances


Potassium dichromate standard: stable in properties, oxidizing agent, stored in a dry place


Sodium carbonate: alkaline, with a certain irritability, avoid contact with eyes and skin, store in a sealed container.


Sodium thiosulfate standard solution: Reductive, decomposes when exposed to acid, store in a sealed container


Iodine standard solution: oxidizing, corrosive, volatile, stored in a brown reagent bottle


Dense hydrochloric acid: Strongly acidic, volatile, use in a fume hood, dilute with acid into water


Hydrochloric acid solution: It has certain volatility and acidity, be cautious and protect yourself.


Hydrogen peroxide: Oxidizing, with certain corrosiveness, may produce oxygen during decomposition, keep away from flammable materials.


Methyl red: low toxicity, used for indicating acid-base titration


Methyl red-bromocresol green mixed indicator: Used for acid-base titration.


Starch indicator: Used to indicate the endpoint of the iodine quantity method


Potassium iodide: White crystals, no special hazards.


Highly corrosive, strong acid, sulfuric acid. When diluted, add acid to water, be careful to protect yourself.


Sodium hydroxide: alkaline, corrosive, avoid contact with skin.


Spectrophotometric determination of content in mixed samples


Equipment and chemicals


2 equipment and chemicals


Equipment


Ultraviolet—spectrophotometer: dual-wavelength single-beam M-600DS


Quartz colorimeter: 1cm


Analytical balance (0.0001g): Precision instrument


Computer:


Printer:


Bottle: 500mL


Ear Cleaning Ball 60mL


Plastic measuring bucket 1000mL


Funnelform holder: 2 or 3 holes


Drier 180mm


Weighing paper 75mm*75mm


Medium-speed filter paper: 12.5 cm


One-time dropper: 0-5 mL


Micropipette rack: plastic material


Medicine Spoon: Stainless Steel 180 mm


Timer: Can time, "hours, minutes, seconds"


Calculator
:


Glass cleaning cloth:


Hair care hat: Small size


Safety goggles: Medium size


Disposable gloves: Small size


Weighing white cotton gloves: Small size


Disposable protective mask: Small size


Laboratory coat: Medium size


Bottle with dimensions 60mm x 30mm, fragile


Bottle capacity: 100mL, fragile


Funnel: 75mm Fragile


pipette: 5mL fragile


Beaker 100mL fragile


Glass rod, 20 cm, fragile


Bottle of reagents: …….. mL fragile


Chemical substances


Ethanol without water: Flammable, volatile and irritating


Sulfamethoxazole: Sulfonamide antibacterial drug, pay attention to allergic reactions, avoid direct sunlight to prevent drug deterioration


Methenamine: Antibacterial drug, pay attention to allergic reactions, should be stored away from light to prevent drug deterioration


Potassium chloride: Non-toxic and odorless, keep dry during storage, store in a fume hood


Sodium hydroxide: alkaline, corrosive to human skin, use with caution

盐酸:强酸性,应在通风橱使用,稀释时酸入水
Hydrochloric acid: Strongly acidic, should be used in a fume hood, add acid to water when diluting

乙酸正丁酯的合成
Butyl acetate synthesis


Equipment and chemicals


2 equipment and chemicals


Equipment

电热套:磁力搅拌,可调温
Electric heating jacket magnetic stirrer, adjustable temperature

升降台:150mm*150mm100mm*100mm
Lifting platform 150mm * 150mm, 100mm * 100mm

铁架台: 国际通用型
Iron frame table international type

电子天平、分析天平(0.01g0.0001g):精密仪器
Electronic balance, analytical balance (0.01g, 0.0001g): Precision instrument

通风设备
Ventilation equipment
:

气流烘干器
Airflow dryer
:

电脑:Windos7以上操作系统,2010以上Office办公软件。
Computer: Operating systems above Windows 7, Office software above 2010.

打印机:
Printer:

温度计: 0-300c°易碎
Thermometer 0-300°C fragile

温度计套管:24#,螺口
Thermometer sleeve: 24#, screw thread

玻璃仪器链接夹:24#
Glass instrument link clip: 24#

冷凝管夹:
Condenser tube clip

烧瓶夹:
Flask clamp:

胶皮管: 2m40cm
Rubber hose: 2m, 40cm

洗瓶:500mL
500ml bottle

洗耳球:60 mL
Earmuff 60 mL

塑料量水:1000mL
Plastic measuring cup 1000mL

称量纸:75mm*75mm
Weighing paper 75mm*75mm

一次性滴管0--5 mL
One-time dropper: 0-5 mL

移液管架
Micropipette rack

药勺:不锈钢180mm
Medicine Spoon: 180mm stainless steel

计时器:可计时,“时、分、秒”
Timer can count time, "hours, minutes, seconds"

计算器
Calculator
:

一次性手套:小号
Disposable gloves: Small size

长袖耐酸碱橡胶手套小号
Long-sleeved acid and alkali-resistant rubber gloves: Small size

一次性防护口罩
Disposable protective mask:

护发帽:中号
Hair care hat: Medium size

实验服:中号
Laboratory coat: Medium size


Safety goggles: Medium size


Single-neck round-bottom flask: 100mL/24#, ground, fragile


Water separator: 24#, ground glass, fragile


Straight condenser tube: 200mL/24#, ground, fragile


Spherical condenser tube: Easy 200mL/24#, ground glass fragile


Distillation head: 24#, ground, fragile


Vacuum tail pipe: 24#, ground glass, fragile


Fractionating funnel: 125mL


Fractionating funnel stand: with a plastic ring or iron ring


Filling cone-shaped bottle: 24#, 100mL, 50mL


Glass stopper: 24#, ground, fragile


Flask: 20mL, fragile


Beaker: 100mL, fragile


Glass rod: 20 cm fragile


Chemical substances


n-butanol: Irritating, flammable


Acetic acid: Strongly acidic, volatile


Dense sulfuric acid: Strong corrosive, add acid to water when diluting


Sodium carbonate anhydrous: alkaline, white powder


Anhydrous calcium chloride: Easily soluble in water