What is baking powder and how is it different from baking soda?

Answer 1

Both baking soda and baking powder are leavening agents, which means they are added to baked goods before cooking to produce carbon dioxide and cause them to 'rise'. Baking powder contains baking soda, but the two substances are used under different conditions.
Baking Soda

Baking soda is pure sodium bicarbonate. When baking soda is combined with moisture and an acidic ingredient (e.g., yogurt, chocolate, buttermilk, honey), the resulting chemical reaction produces bubbles of carbon dioxide that expand under oven temperatures, causing baked goods to rise. The reaction begins immediately upon mixing the ingredients, so you need to bake recipes which call for baking soda immediately, or else they will fall flat!

Baking Powder

Baking powder contains sodium bicarbonate, but it includes the acidifying agent already (cream of tartar), and also a drying agent (usually starch).
Baking powder is available as single-acting baking powder and as double-acting baking powder. Single-acting powders are activated by moisture, so you must bake recipes which include this product immediately after mixing. Double-acting powders react in two phases and can stand for a while before baking. With double-acting powder, some gas is released at room temperature when the powder is added to dough, but the majority of the gas is released after the temperature of the dough increases in the oven.

Answer 2

Baking powder and baking soda are definitely not the same thing. However, what baking soda is: pure sodium bicarbonate. So, I'm not sure if bicarbonate of soda is the same thing... I've never heard of it. But, it sure sounds promising!
You CAN use baking powder as a substitute for soda, but not the other way around. If you use powder instead of soda, you'll need more and it may affect the taste of whatever you're cooking.
If you need baking powder and only have baking soda, try this: Mix (2) parts cream of tartar with (1) part baking soda. Same thing. THEN, you can use this.



Baking powder contains baking soda, but the two substances are used under "different" conditions.
Both baking soda and baking powder are leavening agents, which means they are added to baked goods before cooking to produce carbon dioxide and cause them to 'rise'.

**Baking soda is pure sodium bicarbonate.

**Baking powder contains sodium bicarbonate, but it includes the acidifying agent already (cream of tartar), and also a drying agent (usually starch).

Answer 3

BAKING POWDER IS FOR COOKING AND BAKING SODA IS FOR THE CARPET

Answer 4

1

Answer 5

Baking powder
From Wikipedia, the free encyclopedia
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Baking powder is a dry chemical leavening agent used in baking. There are several formulations; all contain an alkali, typically sodium bicarbonate (baking soda), and an acid in the form of salt crystals, together with starch to keep it dry. When dissolved in water the acid and alkali react and emit carbon dioxide gas, which expands existing bubbles to leaven the mixture. Most modern baking powders are double acting, that is, they contain two acid salts, one which reacts at room temperature, producing a rise as soon as the dough or batter is prepared, and another which reacts at a higher temperature, causing a further rise during baking. Baking powders that contain only the low-temperature acid salts are called single acting. Most recipes call for a mixing procedure that is designed to introduce many tiny air bubbles, for example, "cream the butter and sugar", which the leavening gas from baking powder will expand.

Common low-temperature acid salts include cream of tartar, calcium phosphate, and citrate. High-temperature acid salts are usually aluminium salts, such as calcium aluminum phosphate. They can be found not only in many baking powders, but also in many non-dairy coffee creamers. While dietary aluminium is not known definitively to be detrimental to human health, baking powders are available without it for people who are concerned, and also for those sensitive to the taste.

While various baking powders were sold in the first half of the 19th century, our modern variants were discovered by Alfred Bird. Eben Norton Horsford, a student of Justus von Liebig, who began his studies on baking powder in 1856, eventually developed a variety he named in honor of Count Rumford. August Oetker, a German pharmacist, made baking powder very popular when he began selling his mixture to housewives. The same recipe he created in 1893 is still sold as Backin in Germany. Oetker started the mass production of baking powder in 1898 and patented his technique in 1903.

[edit]
Usage
Baking powder is most often found in quick breads like pancakes, waffles, and muffins. Generally, one teaspoon of baking powder is used to raise a mixture of one cup of flour, one cup of liquid, and one egg. However, if the mixture is acidic, baking powder's additional acids will remain unconsumed in the chemical reaction and often lend an unpleasant chemical taste to food. High acidity can be caused by ingredients like buttermilk, lemon, yoghurt, citrus, or honey. When excessive acidity is present, some of the baking powder is replaced with baking soda. For example, one cup of flour, one egg, and one cup of buttermilk requires only ½ teaspoon of baking powder -- the remaining leavening is caused by buttermilk acids reacting with ¼ teaspoon of baking soda.

[edit]
Substituting in recipes
Baking powder is generally just baking soda mixed with an acid, and a number of kitchen acids may be mixed with baking soda to simulate commercial blends of baking powder. The most common suggestion is to use two parts cream of tartar with one part baking soda. However, nutritionists such as Erica White caution against excessive consumption of cream of tartar, claiming that it is highly toxic. Where a recipe already uses buttermilk or yoghurt, baking soda can be used without cream of tartar (or with less). Alternatively, lemon juice can be substituted for some of the liquid in the recipe, to provide the required acidity to activate the baking soda.



Sodium bicarbonate
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Sodium bicarbonate

General
Systematic name Sodium hydrogen carbonate
Other names Sodium bicarbonate
bicarbonate of soda

Molecular formula NaHCO3
Molecular Weight 84.007 g/mol
Exact Mass 83.982
Appearance White crystalline solid.
CAS number [144-55-8] [1]
Properties
Density and phase 2.20 g/cm3, solid.
Solubility in water 10 g/100 ml (25°C)
Melting point 50°C (323.15 K)
Boiling point Decomposes.
Basicity (pKb) ?
Structure
Molecular shape ?
Coordination
geometry ?
Crystal structure ?
Dipole moment ? D
Hazards
MSDS External MSDS
Main hazards Irritant.
NFPA 704
010
Flash point Non-flammable.
R/S statement R: ?
S: ?
RTECS number VZ0950000
Supplementary data page
Structure and
properties n, εr, etc.
Thermodynamic
data Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Other anions Sodium carbonate
Other cations ?
Related compounds Sodium hydrogen sulphate
sodium hydrogen phosphate
Except where noted otherwise, data are given for
materials in their standard state (at 25°C, 100 kPa)
Infobox disclaimer and references
Sodium bicarbonate NaHCO3, or sodium hydrogen carbonate, also known as baking soda, bread soda, or bicarbonate of soda, is a soluble white anhydrous or crystalline chemical compound, with a slight alkaline taste resembling that of sodium carbonate. It is found in many mineral springs and also produced artificially.

Sodium bicarbonate, when exposed to an acid, releases carbon dioxide and water:

NaHCO3 + HCl → NaCl + H2O + CO2 (gas)
NaHCO3 + CH3COOH → NaCH3COO + H2O + CO2 (gas)
Above 60°C, it gradually decomposes into sodium carbonate, water and carbon dioxide, and at 200°C it is completely decomposed into sodium carbonate:

2NaHCO3 → Na2CO3 + H2O + CO2
Contents [hide]
1 Common Uses
2 Other Uses
3 Safety
4 See also
5 External links



[edit]
Common Uses
Sodium bicarbonate has many common uses:

It is used in combination with acidic compounds (such as cream of tartar, lemon juice, yoghurt, etc.) as a leavening agent in baking: some forms of baking powder contain sodium bicarbonate combined with cream of tartar. (Note: Some nutritionists, such as Erica White caution against combining with cream of tartar or tartaric acid, as they are toxic substances.)
Formerly, it was used as a source of carbon dioxide for soda water.
It is used as an antacid to treat acid indigestion and heartburn.
The anhydrous form is also used to absorb moisture and odours; an open box can be left in a refrigerator for this purpose. However, baking soda does not actually absorb odors well when used in a refrigerator (see [2])
Used in toothpaste, baking soda helps to gently remove stains, whiten teeth, freshen breath, and dissolve plaque.
Sodium bicarbonate is used as a fire-suppression agent ("BC powder") in some dry powder fire extinguishers. It is a minor component of Purple-K dry fire suppression agent.
It is commonly used to increase the pH and total alkalinity of the water for pools and spas. Sodium bicarbonate can be added as a simple solution for restoring the pH balance of water that has a high level of chlorine.
Sodium bicarbonate is also used in military applications. Cold sodium bicarbonate can be used to stop the chemical agent White Phosphorus, a common allotrope of phosphorus often used in incendiary bullets, from spreading inside a soldier's afflicted wounds. Military Application

[edit]
Other Uses
The factual accuracy of this section is disputed.
Please see the relevant discussion on the talk page.
Baking soda has over a hundred uses. [3]

A paste from baking soda can be very effective when used in cleaning and scrubbing.
It removes coffee stains, marker, and crayon.
It can be used to clean out grease.
A solution in warm water will remove the tarnish from silver when the silver is in contact with a piece of aluminum foil.
With water, it cleans the impurities on contact lenses. Rinse completely before wearing contacts to avoid stinging of the salt in baking soda.
Baking soda and boiling water unclogs drains.
One cup of baking soda maintains a healthy septic tank. It controls pH and keeps a good environment for the bacteria.
If made into a paste salve, it relieves burning from bug stings, poison ivy, nettles, and sunburn.
Baking soda helps remove body odours as it absorbs chemicals, apply using a powder puff.
A teaspoon of it and a teaspoon of epsom salt in a glass of water cleans the blood stream. [citation needed]
If a small amount is mixed with water and ingested, it cleans out the kidneys. [4], [5]
It kills fleas and drives away ants. If it is applied to a pet's fur, it must be washed/rinsed off to prevent skin problems.
A small amount (1tsp) can be added to a beef stew to make tough meat tenderize faster. (However, this is no substitute for just stewing the meat for more time.)
It is used as a fabric softener in laundry.
It neutralizes battery acid.
It is used to test garden soil for acidity.
Can be used to kill crab grass in Florida St. Augustine grass. Must be used repeatedly to control but is effective. Dampen area then sprinkle lightly, too much may harm desired grass temporarily.
It can be mixed with cocaine as a part of the process of making crack cocaine or eno.
Sodium bicarbonate has been used as an endurance enhancer.
[edit]
Safety
Although sodium bicarbonate can be used as an antacid, active dose amounts contain large amounts of sodium. Excess consumption can raise blood pH. Sodium bicarbonate should only be consumed in solution with water.