Gibberellic
acid
Common name:
Gibberellic acid
Chemical Name:(1¦Á,2¦Â,4a¦Á,4b¦Â,10¦Â)-2,4a,7-trihydroxy-1-methyl-8-methylenegibb-
3-ene-1, 10-carboxylic acid 1,4a-lactone.
Molecular formula:
C19H22O6
Chemical
family: plant growth regulator
Appearance:
White or buff crystal powder
Solubility:
Easily dissolve in ethanol, acetone . slightly dissolve
in water (5g/L)or chloroform.
Stability:
it is high stable in acidic solution or litmusless solution.
Rapidly break down in alkali solution. Rapidly decomposed
by heat.
Melting point:
223-225 .
Shelf life:
3 years under the cool, shade and dry storage conditions.
Toxicity:
Small rat can resist LD50 15000mg/kg.
Specification:
90% tech grade, 95% tech grade, 20% tech grade. GA4+7-90%,
95% tech grade.
Use:Break
dormancy;promote bourgeon;improve quality and increase
fruit production.Applicable to fruits and vegetables.
Cautions:
1. Due to low solubility of the pure gibberellic acid
in water, dissolve it in small amount of ethyl alcohol
at first, add water to reach the concentration required.
2. Must avoid being used with alkaline substance; may
be used with neutral or mild acidic.
3. The product must be stored in low temperature and dry
conditions. Should be used immediately after adding water.
|
