The invention discloses suspension concentrate containing 30% of
bismerthiazol. The suspension concentrate containing 30% of
bismerthiazol comprises the
bismerthiazol, a moistening dispersing agent, a
thickening agent, an anti-freezing agent and a defoaming agent. A formula includes, by weight, bismerthiazol 30%, moistening dispersing agent 5-10%,
thickening agent 1-2%, anti-freezing agent 3-8%, organic
silicon defoamer SAG630 0.5-1% and the
balance water. A preferable formula includes, bismerthiazol 30%, moistening dispersing agent 8%,
thickening agent 1.05%, anti-freezing agent 4%, organic
silicon defoamer SAG630 0.5-1% and the
balance water. The moistening dispersing agent consists of
alkyl naphthalene moistening agent 1004,
acrylic acid graft
copolymer 2500 and
calcium lignosulphonate dispersing agent SA according to the weight proportion of 1:1:2, the thickening agent consists of
aluminium-
magnesium silicate SF-40 and
xanthan gum according to the weight proportion of 20:1, and the anti-freezing agent is
glycerol. The invention further discloses a preparation method of the suspension concentrate containing 30% of bismerthiazol. Compared with
wettable powder containing 20% of bismerthiazol and
wettable powder containing 25% of bismerthiazol, the suspension concentrate containing 30% of bismerthiazol has the advantages of being high in
efficacy, environment-friendly, convenient to prepare and the like.