Latent heat storage material, and cold storage tool, logistic packaging container, transportation method, human body refrigeration tool and cold storage tool for beverages each using same

A latent heat storage material comprising:

• a compound (A) represented by the following formula (A),
• an inorganic salt (B) represented by the following formula (B) and composed of a cation of an alkali metal and an anion of a same element as an anion of the compound (A);
• and
• water, wherein
• the compound (A) is a material that forms a clathrate hydrate together with the water,
• a composition ratio of the compound (A) and water is a composition ratio that gives a congruent melting point of the clathrate hydrate,
• a molar ratio of the inorganic salt (B) to the compound (A) is 0.1 or more and 10 or less,
• AR4+X− formula (A),
• M+X− formula (B),
• in the formula (A), A is N or P, R is a C1-10 alkyl group, and X− is F−, Cl−, Br−, I−, NO3−, CH3COO−, CH3CH2COO−, CH3CH2CH2COO−, CH2═CHCOO−, or PO43−,
• in the formula (B), M+ is K+, Rb+, or Cs+, and X− is F−, Cl−, Br−, I−, NO3−, CH3COO− CH3CH2COO−, CH3CH2CH2COO−, CH2═CHCOO−, or PO43−, and
• the compound (A) is tetrabutylammonium bromide.