The law of conservation of energy is an empirical law of physics. A consequence of this law is that energy can neither be created or destroyed: it can only be transformed from one state
Charles's law (also known as the law of volumes) is an experimental gas law which describes how gases tend to expand when heated. Gay-Lussac was the first to demonstrate that the law ap
Boyle's law is one of many gas laws and a special case of the ideal gas law. Boyle's law describes the inversely proportional relationship between the absolute pressure and volume of a gas,
In optics, the Beer–Lambert law, also known as Beer's law or the Lambert–Beer law or the Beer–Lambert–Bouguer law relates the absorption of light to the properties of
A lethal dose (LD) is an indication of the lethality of a given substance or type of radiation. Because resistance varies from one individual to another, the 'lethal dose' represents a dose
Avogadro's law is a gas law named after Amedeo Avogadro who, in 1811, hypothesized that two given samples of an ideal gas, at the same temperature, pressure and volume, contain the same numb
The European Commission number, or EC number, also known as EC-No and EC#, is the seven-digit code that is assigned to chemical substances that are commercially available within the European
A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. IUPAC nomenclature is worldwide the most used chemical nomenclature. It is developed and kept u
CAS Registry Numbers are unique numerical identifiers assigned by the "Chemical Abstracts Service" to every chemical described in the open scientific literature and including eleme
A material safety data sheet (MSDS) is a form with data regarding the properties of a particular substance. An important component of product stewardship and workplace safety, it is intended
Double displacement reactions also may be called metathesis reactions. In this type of reaction, elements from two compounds displace each other to form new compounds. Double displacement re
A single displacement reaction is characterized by an atom or ion of a single compound replacing an atom of another element. An example of a single displacement reaction is the displacement
In a decomposition reaction, a compound breaks down into two or more substances. Decomposition usually results from electrolysis or heating. An example of a decomposition reaction is the bre
Two or more reactants form one product in a combination reaction. An example of a combination reaction is the formation of sulfur dioxide when sulfur is burned in air:
S (s) + O2 (g
is a kind of anti-tumor API. There are some basic informations about this crude drug: (1)CAS No.: ; (2)Other Names: DMTD; (3)MF: C2H2N2S3; (4)EINECS No.: 214-014-1; (5)Type: Pharmaceutical
is a kind of antibiotic and anti-infective API. There are some basic informations about this crude drug: (1)Dosage Form: Powder; (2)Component: DL-Chloramphenicol; (3)Function
Furazolidone is a kind of antibiotic and anti-infective API. There are some basic informations about this crude drug: (1)CAS NO.: ; (2)M.F: C8H7N3O5; (3)M.W: 225.16; (4)Appearance: white pow
is a kind of organic intermediate. There are some basic informations about this crude drug: (1)CAS No.: ; (2)Other Names: Chlorosulfonyl isocyanate; (3)MF: CClNO3S;(4)EINECS No.: 214-715-2;
