Pharmaceutical Inorganic Chemistry Flashcards
A subgroup; outer energy level (incomplete)
Representative Elements
D-orbital
Partially filled starting at IIIB to IIB
Transition Elements
Partially filled F-orbitals
Lanthanides and Actinides/Inner Transition Elements
Completely filled
S and P orbitals, very stable
Noble Gases/ Inert Gases/ Rare Gases
O or VIIIA
Inert Gases
IA
Alkali Metals
VIIA
Halogens
IB
Coinage Metals
IIA
Alkaline Earth Metals
IIB
Volatile Metals
VIA
Chalcogene
Act either as an acid or as a base depending on the chemical reaction
Amphoteric Character
1st member of the family can be quite unlike the other members; it more closely resembles the 2nd member of the adjacent group to the right
Diagonal relationship or Bridge Elements
Li
Mg
Be
Al
B
Si
C
P
N
S
O
Cl
Measure of the energy required to REMOVE an electron
Ionization Potential
ATTRACTION of a nucleus for electrons
Electronegativity
- Combination
- Decomposition
- Disproportion reactions
- Displacement (Single Displacement)
Oxidation-Reduction (Redox)
Displacement (Single Replacement)
- Hydrogen displacement
- Metal displacement
- Halogen displacement
- Precipitation
- Neutralization
- Gas formation
Metathesis (Double displacement)
General form: A + B ➡️ C
Example: Combustion Reaction
General form: AB ➡️ A + C
— breakdown of a compound into two or more components
Combination Reaction
Special type of redox reaction wherein an element in one oxidation state is simultaneously oxidized and reduced
Disproportionation reaction
General form: A + BC ➡️ AC + B
Displacement reaction
Reactions are governed by ACTIVITY SERIES for metals
Hydrogen displacement
A metal in a compound can also be displaced by another metal in the uncombined state
Metal displacement
Activity series for halogens: F2 > Cl2 > Br2 > I2
Halogen displacement
General form: AB + CD ➡️ AC + BD
Metathesis Reaction
Formation of an insoluble product (precipitate) which separates from solution
Precipitation reactions
Predict the outcome of precipitation reactions
Solubility Rules
General form: Acid + Base ➡️ Salt + Water
Acid-Base Reactions (Neutralizations)
IA
Alkali Family
IA (Alkali Family)
H, Li, Na, K, Rb, Cs
Most reactive among the metallic elements
IA - Alkali Family
Pharmaceutically Important IA Elements
- Hydrogen
- Lithium
- Sodium
- Potassium
Inflammable Air (Cavendish, 1766)
Hydrogen
Universal Solvent
Water
Simplest and lightest element
Hydrogen
Third most abundant element in Earth’s crust
Hydrogen
Production of Hydrogen
Linde Method
Industrial uses of hydrogen
- Haber process
- Hydrogenation of oils
- Inflating balloons
Haber process
Production of ammonia
Isotopes of Hydrogen
- Protium
- Deuterium
- Tritium
Pharmaceutically important compounds of Hydrogen
- Water
- Hydrogen
- Peroxide
- Acids
Contains appreciable quantities of Na2SO4, MgSO4 and NaHCO3
Alkaline Water
CO2 under pressure
Calcium and magnesium carbonates in solution as bicarbonate
Carbonated Water
Contains IRON
Characterized by its FERRUGINOUS TASTE
Forms ferric hydroxide or ferric oxide upon exposure to air
Chalybeate Water
Do NOT contain appreciable quantities of LITHIUM, either as carbonate or chloride
Lithia Water
High amounts of MgSO4, Na2SO4 and NaCl
Saline Water (Purgative Water)
Contains dissolve H2S and deposit S upon exposure to the atmosphere
Sulfur Water
Water that contain soluble alkali silicates
Siliceous Water
Fit to drink, free form coliform organisms
Potable Water
Water with MINIMAL OR NO DISSOLVED INORGANIC IONS;
Low in dissolved calcium and magnesium ions
Soft Water
Water with APPRECIABLE AMOUNTS of calcium and magnesium ions
Hard Water
Contain soluble SULFATES, CHLORIDES, OR HYDROXIDES of calcium and or magnesium removed by ion exchange resins
Permanent Hard Water
Fewer solid impurities than ordinary drinking water
Purified Water, USP
Not use for neonates
Bacteriostatic Water for Injection, USP
Toxicity of benzyl alcohol
Gasping Syndrome
Water obtained from distillation, ion exchange tx, reverse osmosis of other suitable process
Purified Water, USP
Used for reconstitution of multiple antibiotics
Sterile Water for injection, USP
Water purified by distillation or reverse osmosis
Water for Injection, USP
Most widely used excipient in pharmaceutical manufacturing
Purified Water, USP
Must be used only in parenterals administered in SMALL volumes
Bacteriostatic Water for Injection, USP
Not required to be sterile but MUST BE PYROGEN-FREE
Water for Injection, USP
SWFI containing 1 or mor suitable antimicrobial agents packaged in prefilled syringes or in vials containing NMT 30 mL of the water
Bacteriostatic Water for Injection
Packaged in single dose containers NLargerT 1L
Sterile Water for Injection, USP
Intended to be used for manufacture of injectable products to be sterilized after preparation
Water for Injection, USP
Most frequently used solvent for LARGE-SCALE manufacture of injections
Water for injection, USP
Used for preparation of aqueous dosage forms EXCEPT those intended for parenteral administration
Purified Water, USP
Must be pyrogen free but has allowable endotoxin level (nmt 0.25 USP endotoxin units per mL)
Sterile Water for Injection, USP
Intended to be used as solvent, vehicle, or diluent for already sterilized and packaged injectable medications
Sterile Water for Injection, USP
Neutralization
Arrhenius Concept
PROTONIC Concept of acidity and basicity.
Acids — donors
Bases — acceptors
Concept of Hydrolysis
Bronsted - Lowry Concept
ELECTRONIC Concept
Acids — donors
Bases — acceptors
Lewis Concept
HSAB Concept
Pearson’s concept of acidity and basicity
Suitable for ophthalmic, nasal and EXTERNAL application only
Borate Buffer System
Suitable for INTERNAL application
Phosphate Buffer Systems
Slight modification of Atkins and Pantin buffer system.
Contains high concentration of KCl
Gifford’s buffer
Baluable buffer syatem for ophthalmic drugs
Sorensen’s buffer
Major control of pH
Protein buffers (Hb and oxyHb)
Contains NaCl, dibadic sodium phosphate, may also contain KCl, monobasic K phosphate, calcium chloride and magnesium sulfate
Phosphate Buffered Systems
- Sal Sedativum Hombergi
- Boracic acid
- Orthoboric acid
Boric Acid, NF
Spirits of Salt
Hydrochloric Acid
Technical grade of HCl, impurities give it a characteristic yellow color
Muriatic acid
Parietal cells of the stomach secrete
HCl
pH of gatric juice
1-2
- Eau forte (strong water)
* Aqua fortis
Nitric acid
Production of Nitric Acid
Ostwald Process
- Orthophosphoric acid
- Syrupy phosphoric acid
- Concentrated Phosphoric Acid
Phosporic Acid
Strong monoprotic acid
Nitric Acid