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[CN] Great Quality 4-PHENOLSULFONIC ACID, SODIUM SALT Best Sell Mar 15, 2017

Basic Info:
Name:4-PHENOLSULFONIC ACID, SODIUM SALT
Apearance:White powder
CAS:825-90-1
MF:C6H5NaO4S
MW:196.16
Shipment:EMS,DHL,UPS,Fedx
Package:disguised
Payment: Bank Transfer,Bitcoin,WU,MoneyGram
benzoic acid
Benzoic acid, benzoic acid
Alias: benzoic acid; benzene carboxylic acid; benzoic acid
English Name: acid Benzoic
Chemical formula: C7H6O2
CAS number: 65-85-0
SMILES:c1ccccc1C (=0) 0
RTECS:200-618-2
Molar mass: 122.1224
Physical properties: scale like or needle like crystals, with the smell of benzene or formaldehyde;
Density: 1.2659g/cm3
Melting point: 121-123
Boiling point: 249.3
Solubility in water: 0.21g (17.5 C), 0.35g (25), 2.2g (75), 2.7g (80), 5.9G (100 C);
The main application field of
Mainly used in the production of antifungal and antiseptic, used in medicine, dye carrier, plasticizer, perfume and food preservative, etc., and also for the improvement of the performance of alkyd resin coatings.
Benzoic acid medical use
With salicylic acid for adult skin fungal disease, superficial fungal infections such as tinea corporis, tinea manuum and tinea pedis and so on, but because there are more effective antifungal drugs, the preparation can as second-line drugs. Also used in food and pharmaceutical preparations of preservatives, the general concentration of 0.2%, or with 0.5% sodium benzoate, the solubility is better.
[efficacy] this product is antiseptic [3], has the anti bacterium function; in the acidic environment, the 0.1% concentration has the inhibitory effect. Usually low pH value is better, such as pH3.5, 0.125% of the concentration in 1 hours to kill staphylococcus. Weakened in alkaline environment. External use can resist superficial fungal infection. 0.05 - 0.1% concentration adding drugs or food preservatives can inhibit bacterial and fungal growth.
[pharmacokinetics] oral rapidly absorbed from the digestive tract, form hippuric acid and glycine in the liver in combination, the latter in 12 hours quickly from the urine discharge, in the first 4 hours reached 97% of the amount. Such as oral dosage, the part can be coupled with the excretion of the benzene, a group of.
[] the drug interaction and compatibility of ferric salt and heavy metal salt taboo.
[administration] using the product not only need to pay attention to the concentration, still need to pay attention to the pH value, in the slightly acidic environment than in the alkaline environment effectively.
[usage and dosage]
. the product is often by 6% ~ 12% concentration of salicylic acid and formulated into tincture, ointment in the treatment of skin superficial fungal infection, coated with skin lesions, daily 1 ~ 2 times, treatment cycle can according to the infection of several weeks or months.
The effective concentration of drug preparations as preservatives and food for 0.05% to 0.3%.
Oral administration of asthma, skin rash, lips and tongue edema, rhinitis, urticaria, and vascular edema and other allergic reactions (incidence rate of 3% ~ 7%). External coating can occur contact dermatitis, but also to stimulate the eyes and mucous membranes. A larger dose of oral administration can cause the salicylate like reaction.
Preparation: Laboratory method for preparation of initial benzoic acid is made from gum benzoin carbonization or alkaline hydrolysis and also can be prepared by hydrolysis of hippurate for.
Detection method:
Method name: Determination of benzoic acid, benzoic acid, neutralization titration method
Application: this method was used to determine the content of benzoic acid in the raw material of benzoic acid by titration.
The method is suitable for the raw material of benzoic acid.
Method: tested goods and neutral dilute ethanol (of phenolphthalein indicator solution significant neutral) dissolved, add fluid of phenolphthalein indicator, with sodium hydroxide as the titrant, and corrected the results of titration with blank test, according to the amount of use of the titrant calculated benzoic acid content.
Reagent: 1 neutral dilute ethanol (to phenolphthalein liquid neutral)
The sodium hydroxide titration solution (0.1mol/L)
3 phenolphthalein indicator solution
The benchmark two phthalic acid potassium hydrogen
Instrument and equipment:
Sample preparation:
1, sodium hydroxide titration solution (0.1mol/L)
Preparation: take the amount of sodium hydroxide, water shake to dissolve into a saturated solution, after cooling, the polyethylene plastic bottle, put aside for a few days, after the clarification. The clarification of the saturated solution of sodium hydroxide 5.6mL, add new boiling water to make 1000mL, shake.
Calibration: take in 105 DEG C and dried to a constant weight benchmark adjacent benzene dicarboxylic acid potassium hydrogen about 0.6g, precision said, adding new boiling water 50ml, shaking the dissolve as far as possible, with phenolphthalein indicator solution 2 drops, the titrant, towards the end of the, make potassium hydrogen phthalate is completely dissolved, the solution titration to is shown in pink. Each 1mL sodium hydroxide titration solution (0.1mol/L) is equivalent to 20.42mg of two hydrogen phthalate. The concentration of the solution is calculated according to the consumption of the liquid and the amount of hydrogen and potassium in the two hydrogen phthalate.
Storage: set polyethylene plastic bottle, sealed and stored; from two of the plug holes, bores are respectively inserted into the glass tube 1, 1 pipe lime and sodium is linked together, tube 1 for suck out the liquid.
2, phenolphthalein indicator solution
Take 1g 100mL to add phenolphthalein, ethanol solution.
Steps: precision said donor sample about 0.25g, neutral and dilute ethanol (of phenolphthalein indicator solution significant neutral) dissolved in 25ml, phenolphthalein indicator solution 3 drops, by titration with sodium hydroxide solution (0.1 mol / L) titration. Each 1mL sodium hydroxide titration solution (0.1mol/L) is equivalent to C7H6O2 of 12.21mg.
Note: the "precision" system refers to the weight of the weight should be accurate to the weight of the 1/1000. The accuracy of the measurement system of the precision measurement should meet the requirements of the national standard.
Safety measures:
Benzoic acid leak emergency treatment
Isolation and leakage of contaminated areas, surrounded with warning signs, cut off the fire source. Emergency handling personnel wearing a gas mask, wearing a general fire protective clothing. To be collected in a container with a cover for drying and cleaning with a clean shovel, and transported to the waste disposal site. Such as a large number of leaks, collection and recycling or disposal of waste.
Benzoic acid protection measures
Respiratory protection: when the concentration exceeds the standard in the air, wear a mask respirator. urgent
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Company Profile
Company: 
Zhuzhou Yuancheng Hezhong Technology Company (click to show company details)
Contact:  sara liu
URL:  **************************
Email:  Contact us
Phone:  ***************
Fax:  ***************
Country:  [CN]
Address:  Huangshan road, Tianyuan district



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