Guideline value; 0.02 mg/l (20 µg/l) Occurrence; Concentrations in groundwater less than 0.001 µg/l; concentrations in surface water less than 0.2 µg/l; concentrations in drinking-water appear to be less than 5 µg/l .
Tolerable daily intake (TDI) 6 µg/kg body weight, based on a NOAEL of 6.0 mg/kg body weight per day for decreased body weight gain and reduced food and water intake in a 90-day study in which rats were administered potassium antimony tartrate in drinking-water, using an uncertainty factor of 1000 (100 for interspecies and intraspecies variation, 10 for the short duration of the study).
Antimony is a chemical element with the symbol Sb (from Latin: stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl. Metallic antimony was also known, but it was erroneously identified as lead upon its discovery. The earliest known description of the metal in the West was written in 1540 by Vannoccio Biringuccio.
For some time, China has been the largest producer of antimony and its compounds, with most production coming from the Xikuangshan Mine in Hunan. The industrial methods for refining antimony are roasting and reduction with carbon or direct reduction of stibnite with iron.
The largest applications for metallic antimony are an alloy with lead and tin and the lead antimony plates in lead–acid batteries. Alloys of lead and tin with antimony have improved properties for solders, bullets, and plain bearings. Antimony compounds are prominent additives for chlorine and bromine-containing fire retardants found in many commercial and domestic products. An emerging application is the use of antimony in microelectronics.
The geochemical behavior of antimony is almost like that of arsenic, a metalloid element. Its concentration in the upper continental crust is 0.2 ppm. The most important minerals are: Stibnite (Sb2S3), Ulmanite (NiSbS), Livingstonite (HgSb4S8), Tetrahedrite (Cu3SbS3) . Antimony behavior in the aquatic environment is still poorly understood (Filella et al., 2002). The main source of antimony in water is rock weathering processes. Antimony is a conservative element in the aquatic environment (Lin et al., 2012; Wilson and Webster-Brown, 2009).
Both toxicity and mobility of antimony are affected by oxidation state. Both two inorganic forms of antimony (Sb III and Sb V) are subjected to hydrolysis in aquatic systems by forming some hydroxide species. Although redox transformation of Sb (V) (oxic) to Sb (III) (anoxic) is quite common in the environment, antimony (V) is the most stable form in both oxic and anoxic conditions.
Antimony is a semimetallic chemical element which can exist in two forms: the metallic form is bright, silvery, hard and brittle; the non metallic form is a grey powder. Antimony is a poor conductor of heat and electricity, it is stable in dry air and is not attacked by dilute acids or alkalis. Antimony and some of its alloys expand on cooling.
About dissolving antimony trichloride in water or aq. sol., you may want to check my posts elsewhere at this forum: https://www.researchgate.net/post/How_do_I_dissolve_antimony_compounds_in_water_or_acid