Hydrophilic Raw Material - Perservatives

Question 1

EDTA ethylene diamine tetra acetic acid

Answer 1

-is a chelating agent tie up trace metal ions (copper, magnesium, and iron) which can catalyze the oxidation of unsaturated and fragrance ingredients
-capable of functioning as an anti microbial agent and as potentiator of the preservation actions of other microbial present
- chelating agent is also called the séquestrants. are ingredients that have the ability to complex with an active metals and ions, in order to prevent their adversive effects on the stability or appearance of cosmetic products. 

Question 2

Methyl paraben

Answer 2

Characteristics: G+,G-, Y, M
Solubility water: slightly soluble
Storage conditions: store in tightly sealed containers in a cool place
Incompatible materials: strong oxidizing agent. Strong base
Chemical nature: ester derivative

Question 3

Ethyl Paraben

Answer 3

Characteristics: G+,G-, Y, M
Solubility water: slightly soluble
Storage conditions: store in tightly sealed containers in a cool place
Incompatible materials: strong oxidizing agent. Strong base
Chemical nature: ester derivative

Question 4

Propyl Paraben

Answer 4

Characteristics: G+,G-, Y, M
Solubility water: slightly soluble
Storage conditions: store in tightly sealed containers in a cool place
Incompatible materials: strong oxidizing agent. Strong base
Chemical nature: ester derivative

Question 5

Benzalkoniun Chloride

Answer 5

Characteristics: G+,G-, Y, M
Solubility water, ethanol: soluble

Incompatible materials: strong oxidizing agent. Strong base and an ionic. Potentiation of activity by EDTA Chemical nature: ester derivative

Question 6

Bronopol/2-bromo 2 nitropropane-1,3-diol

Answer 6

Characteristics: G+,G-, Ps
Solubility water: soluble

Incompatible materials: strong oxidizing agent. Strong reducing agents, strong bases, acid chlorides, acid anhydrides
Chemical nature: halogen compound

Question 7

Dehydroacetic acid

Answer 7

Characteristics: G+,G-, Y, M, prohibit in aerosol
Solubility water, ethanol: slightly soluble

Ideal pH 5-6

Incompatible materials: strong oxidizing agent. Strong reducing agents. Strong bases acid chlorides, acid anhydrides
Chemical nature: organic substances

Question 8

Dimethyl oxazolodine

Answer 8

Characteristics: G+,G-, Y, M
Solubility water: soluble

Unstable below pH 5

Chemical nature: organic substance

Question 9

DMDM hydantoin

Answer 9

Characteristics: G+,G-, Y, M
Solubility water: soluble liquid

Formaldeid donor

Chemical nature: organic substance

Question 10

Germall/Duazolidinyl urea

Answer 10

Characteristics: G+,G-, Ps, Y, M
Solubility water: soluble

Formaldehyde releasing

Incompatible materials: non ionic emu and most other cosmetic ingredients
Chemical nature: organic substance

Question 11

Polyaminopropyl Bigianide

Answer 11

Characteristics: G+,G-, Ps
Solubility water: soluble

Clear yellow liquid
0ptimum pH 4-6

Chemical nature: organic substance

Question 12

Salicylic Acid

Answer 12

Characteristics: Y, M
Solubility water: partially soluble

Crystalline substance
Optimum pH 4-6

Chemical nature: organic substance

Question 13

Formic Acid

Answer 13

Characteristics: G+,G-, Y, M
Solubility water: soluble

Crystalline Substance
Optimum pH 3.5 active only at acidic pH

Chemical nature: organic substance

Question 14

Imidazolidinyl Urea

Answer 14

Characteristics: G+,G-
Solubility water: soluble

Hygroscopic crystalline powder
pH: wide range

Chemical nature: organic substance

Question 15

Sorbic Acid

Answer 15

Characteristics: Y, M
Solubility water: soluble

Slightly incompatible with non-ionic compounds
Hygroscopic crystalline powder
pH: up to 6.5

Chemical nature: organic substance

Question 16

Triclosan

Answer 16

Characteristics: G+,G-, Y, M
Solubility water: soluble

Slightly incompatible with non-ionic compounds
White crystalline powder
pH: 4-5

Chemical nature: organic substance