Mepiquat
Chloride
Common
name: Mepiquat chloride.
Other name:
pix, terpal
Chemical name:
N, N= dimethylpiperidinium Chloride
Molecular Formula:
C7H16NCl
specification:
98% Tech., 96% Tech. (w/w)
Physical&Chemical Characteristics:
Molecular Weight:
149.66
Appearance:
White to slight yellow crystalline solid
Melting Point:
223¡æ, Decomposition Point: 285¡æ
Vapour Pressure:
<1x10-7 mbar (20¡æ)
Solubility:
Solubility in gram in every 100g solvent at 20¡æ. Water;
>100g; Ethanol: <16.2g; Acetone, ether, ethyl
acetate, cyclohexame and olive oil: <0.1g.
Density:
1.87 (20¡æ)
Thermal Stability: Stable to heat.
Combustibility and Explosibility: Inflammable, inexplosive
Storage Stability: a stable period of 2 years, under
the cool, shade and dry storage conditions.
Toxicity:In accordance with Chinese toxicity grade scale
of agrochemical, mepiquat chloride is a low toxicity
plant growth regulator.
Acute Toxicity:
Adult Rat Oral LD50 =1490mg/kg
Dermal LD50 =7800mg/kg
Inhalation LC50 =3.2mg/L
Toxicity to Eye and Skin:
No irritatiion to rabbit skin and eyes.
Accumulation Toxicity:
Mepiquat chloride accumulates little in animal body
and doesn't cause mutation, aberration and cancer under
experimental conditions. No abnormality accurs inthe
3 - generation reproduction experiment of adult rat.
Chronic Toxicity:
The no-effect dosage is 3000ppm in the 2-year chronic
feeding experiment of adult rat.
Mode of action & functions:
This product is kind of plant growth retardant. It mostly
restrain the biosynthesis of gibberellic acid inside
crops when being absorbed by leaves and roots. In this
way it can restrain the elongation of cell, stay the
growth of nutrition; make plants shorter and increase
content of chlorophyll. This also increases assimilation
of leaves and adjusts distribution of outcome inside
plants.
Adjust growth of cottons;
control model of plant; harmonize develop of nutrition;
reduce falling off of boil, increase boil number and
weight of each plant, increase output. We can see from
research that it could increase number and weight of
boil of the middle and lower part of plant.
Make wheat short but strong and increase the production.
Restrain elongation of culm, make plant to be wide and
strong, avoid its lodge. The color of leaves will be
darker, accumulation of nutrition become increased,
number of fringe and output both increased obviously.
When crops were sprayed in anthesis, we can raise their
fruit rate and kilo grain weight.
For peanut, mung bean, tomato, watermelon and cucumber,
it can help the transportation of photosynthesis outcome
to flower and fruit. Aboid falling off, increase fruit
rate.
Help the intumescences of rhizome
Increase content of grape sugar and out put. It can
obviously restrain elongation between tips, reduce consume
of nutrition, facilitate accumulation of sugar and intumescences
of animus.
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