How to Make Sulfuric Aacid 2 N

When are we going to create a solution with a particular concentration, then we first know how the concentration of pure substances or concentrated. Indeed we could not make the solution is greater than the purest ingredients. Usually we create a solution with a concentration lower than that of pure substances or which we often call with dilution. Where a dilution formula alike we know IE: V1.N1 = V2.N2.

with the description:

V1: the number of pure solution we take

N1: concentration of a solution we will diluted

V2: the number of solutions will we create with dilution of

N2: the concentration of the solution which we will create

If we know that Pure sulfuric acid Levels = 96% ~ 36 N (N1)

The calculation of the manufacture of Sulfuric acid solution 2 of N (N2) as much as 250 ml (V2) are as follows:

V1.N1 = V2.N2

V1 = V2.N2: N1

= 250 ml of 2 N: 36 N

= 13,8889 ml ~ 1, 10 ml

So V1 = 11 9 ml.

So how to manufacture sulfuric acid 2 N, namely:

-Contents of pumpkin measure 250 ml, with distilled water approximately 100 ml, and then add 13.9 ml of concentrated sulfuric acid at a, Shake briefly and then add the distilled water back up to 250 ml or up to the mark.

On the dilution of the concentrated acid in General or the manufacture of Sulfuric Acid 2 n particular, always a pumpkin or squash measure indeed measure should be fully distilled water in advance to avoid the heat changes, which can generate spontaneous explosions.

Making a Solution of Iodium 0,1 N (KI3 0,1 N)

Solution of Iodine commonly known with the solution of the drug. However in other Quantitative analysis of Chemical material, which has the formula I2 Iodine indeed, but if it is only dissolved in water, it will be difficult to dissolve or difficult to dissolve. If any insoluble, it takes a relatively long time. Usually the creation of a solution of Iodine often added helper substances i.e. KI (Potassium Iodide). so this solution finally has a formula of the compound KI3.

Here's how to make:

-Carefully Weigh as much as 12, 90 grams of Iodine (I2) + 18.00 grams of Potassium Iodide (KI) and dissolve in 200 ml of water. After all the soluble, dilute iodine solution with water to 1000 ml solution.

This solution is used as the default solution in titration in Iodine Methods .

Manufacturing Hydrochloride Acid 6 N

Take 50 ml of Concentrated Hydrochloric Acid, poured into 100 ml volumetric flask which already contains 50 ml of water as well. Mix well.

Manufacturing DAB Chloride Acid

Manufacturing DAB Chloride Acid

Weigh 2 grams of 4 - Di methyl Amino Benzaldehide and then dissolved in 90 ml 6 N Hydrochloric Acid, then add water up to 100 ml.

Identification Sulfadiazine

SULFADIAZINE

Organoleptic :

1. Form : Clot such as powder
2. Color : White
3. Flavor : Vanilla
4. Taste : Bargaining or tasteless

Solubility :

1. Cold water / Hot water : Insoluble / Insoluble
   
2. Cold dilute acid / Hot dilute acid : Soluble / Soluble
3. Cold dilute alkali / Hot dilute alkali : Soluble / Soluble
4. Ethanol 70 % : Insoluble

Color Reaction :

1. + DAB Chloride Acid : Slightly orange yellow
2. Reaction Matches : Orange
3. Diazo Reaction : Little brown peacock
4. Bromate Test : Brown
5. Reaction of Indofenol : Red Rose
6. Reaction of Cuprifil : Yellow, gradually became Violet
7. + Reagent Parry : Dark Purple
8. + NaOH then boiled : Ammonia odor
9. Vanilla Test : Yellow Green
   

Manufacturing Zwikker Cardiazol Reagent

Weigh approximately 20 grams CuCl2 + 25 grams of NaSO2 are both dissolved in 200 ml of water then chill. After the cold and then add 200 ml Concentrated Hydrochloric Acid, then add enough water until a 1 Liter Solution.

Manufacturing of 10 % Copper Sulfate ( CuSO4 10% )

Weigh approximately 10 grams of CuSO4 dissolved in 100 ml of water. Shake to dissolve completely. Strain if necessary.

Manufacturing Molisch Reagent

Weigh 3 grams of 1- naphthol dissolved in 100 ml of Ethanol is 96% pro analysis.

manufacturing Zwikker Reagent

Weigh 100 grams of Pyridine dissolved in 400 ml of 10% CuSO4. Add enough water so that it becomes 1 liter of solution.

Manufacturing Benedict's Reagent

Weight of 17.7 gram CuSO4 + 173 gram Sodium Citrate + 117 gram Sodium Carbonate, Then dissolve it with water so the three of exactly 1 Liter solution.

Determination of Levels of Sulfanilamid

Weigh exactly 300 mg Sulfanilamid, dissolved in 20 ml of NaOH 2% in iodine flash. Add 80 ml of Glacial Acetic Acid + 3 grams KBr + 2 ml HCl saturated. Immediately add the Methyl Red Indicator. Titration carried out with 0.1 N KBrO3 until the red color changed to yellow solid solution. Titration declared complete when the yellow didn't changed after adding 1 drop of Methyl Red indicator.

Each ml of 0.1 N KBrO3 equivalent to 4.305 mg of C₁₂H₁₂N₄O₂S

Sulfanilamid content = ml KBrO3 X N KBrO3 X 4.305 : (mg Sample X 0.1) X 100 %

Manufacturing Sodium Nitrite 0,1 M ( NaNO2 0, 1 M )

Preparation of Sodium Nitrite 0, 1 M

Weigh accurately 7.5 grams of Sodium Nitrite ( NaNO2 ) dissolved in purified water to 1000 ml.

Note: Pure water used must be completely free from various anions.

Manufacturing Silver Nitrate 0,1 N ( AgNO3 0,1 N )

Preparation Of Silver Nitrate 0,1 N

Weigh exactly 16.989 grams Silver Nitrate ( AgNO3 ) dissolved in purified water to 1000 ml.

Note: Pure water used must be completely free from various anions. For example: The level of Cl^- excess, will make the solution becomes turbid.

Manufacturing Potassium Permanganate 0.1 N

Preparation of Potassium Permanganate 0.1 N

Dissolve 3.161 grams of KMnO4 ( Potassium Permanganate ) with enough water to 1000 ml. Heat the solution to boiling for 15-30 minutes. Cool at room temperature, then filtered using Glasswool or Gooch crucible, which was given filtering asbestos or glass splinters. Capacity in a brown bottle that has been rinsed with Acid Chromate, then save.

Note : If no Glasswool or Gooch crucible, the solution can be filtered using filter paper but must be stored before approximately 1 X 24 hours.

Manufacturing Iodine 0,1 N

Preparation of Iodine Solution 0, 1 N

Dissolve 12.69 grams of Iodine and 18 grams of KI (Potassium Iodide) in 100 ml of water. Shake up until dissolve completely. Then add enough water until 1000 ml.

Note: Keep this solution in the bottle and the space that is free from UV. Because the UV radiation exposure, iodine concentration can be damaged or dropped.

Manufacturing Potassium Bromate 0.1 N ( KBrO3 0,1 N )

Manufacturing of 0.1 N Potassium Bromate

Dissolve 2.784 g KBrO3 with enough water in the measuring flask to 1000 ml.

Note : KBrO3 is one of the primary standard solution, so for its concentration rarely standardized return.

Manufacturing Sodium Thiosulfate 0.1 N ( Na2S2O3.5H2O 0,1 N )

Manufacturing of Sodium Thiosulfate 0.1 N

Dissolve 24.82 g Na2S2O3.5H2O with enough water to 1000 ml. Use water that has been boiled.

Note : If this solution will be used for several days, add 0.1 g Sodium Carbonate or 3 drops of chloroform per 1 liter.

Standardization of Acid Chloride 0.5 N

Weigh carefully the 750 mg Sodium Carbonate Anhydrous previously been heated at a temperature of 270 degrees Celsius for 1 hour. Sodium Carbonate was dissolved with 50 ml of water and add 2-3 drops of Methyl Red indicator. Add slowly the solution with the acid chloride (titration) while shaken until the pink solution is concentrated. Heat until boiling solution. Continue titration longer pink when lost. Stop the titration when the color does not change.

Formula:

Normality HCl = 2 X mg Na2CO3 : ( Mr Na2Co3 X ml HCl )



NOTE :

• Mr Na2CO3 = 106
• mg Na2CO3 = a weighed amount of sodium carbonate
• ml HCl = amount of hydrochloric acid used for titration

Manufacturing Sulfuric Acid 2 N

Manufacturing Sulfuric Acid 2 N ( Sulfuric Acid 10 %)

Take 29.4 ml of Concentrated Sulfuric Acid (Sulfuric Acid Pure) and then pour into 500 ml volumetric flask which already contains about 200 ml of distilled water through its walls. Mix well (shake) for a while then add enough distilled water to 500 ml.

Note : Dilution is done by the correct method

For Example : Water + Pure Solution + Water

Manufacturing Oxalic Acid 0,1 N [ (COOH)2 ]

Manufacturing Oxalic Acid 0,1 N


Weigh 6,459 grams of Oxalic Acid and then dissolved in pure water in a measuring flask to 1000 ml.

Note : Materials used must pro analysis. Pure water used is usually distilled water.