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Handbook of Solvents - George Wypych - ChemTech - Ventech!

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1184 J Devillers, A Chezeau, A Cicolella, E Thybaud<br />

Species Results Comments Ref.<br />

Triethylene glycol monomethyl ether [112-35-6]<br />

Bacteria<br />

Pseudomonas<br />

aeruginosa<br />

Sulfate-reducing<br />

bacteria<br />

4-m biocidal = 10-17%<br />

3-m biocidal = 10-17%<br />

tested in jet fuel and water mixtures<br />

tested in jet fuel and water mixtures<br />

25<br />

25<br />

Yeasts Candida sp. 4-m biocidal = 10-17% tested in jet fuel and water mixtures 25<br />

Fungi<br />

Cladosporium resinae 4-m biocidal = 10-17% tested in jet fuel and water mixtures 25<br />

Gliomastix sp. 4-m biocidal = 17-25% tested in jet fuel and water mixtures 25<br />

Triethylene glycol monoethyl ether [112-50-5]<br />

Bacteria<br />

Pseudomonas<br />

aeruginosa<br />

Sulfate-reducing<br />

bacteria<br />

4-m biocidal = 5-10%<br />

3-m biocidal = 2-5%<br />

tested in jet fuel and water mixtures<br />

tested in jet fuel and water mixtures<br />

25<br />

25<br />

Yeasts Candida sp. 4-m biocidal = 5-10% tested in jet fuel and water mixtures 25<br />

Fungi<br />

Cladosporium resinae 4-m biocidal = 10-17% tested in jet fuel and water mixtures 25<br />

Gliomastix sp. 4-m biocidal = 17-25% tested in jet fuel and water mixtures 25<br />

Crustacea Artemia salina 24-h TLm >10000 mg/l static, 24.5°C 10<br />

Fish Carassius auratus 24-h TLm >5000 mg/l<br />

Propylene glycol monomethyl ether [107-98-2]<br />

Fungi Cladosporium resinae 42-d NG = 20%<br />

Propylene glycol monomethyl ether acetate [108-65-6]<br />

Fish Lepomis macrochirus<br />

24-h LC50 = 206 mg/l<br />

96-h LC50 = 164 mg/l<br />

static, 20 ± 1°C, measured concentrations<br />

NG = no visible mycelial growth<br />

and spore germination, 1% glucose-mineral<br />

salts medium, 30°C<br />

It is difficult to draw definitive conclusions from the data listed in Table 17.3.2. Indeed,<br />

most <strong>of</strong> the data have been retrieved from rather old studies performed without GLP<br />

protocols. In addition, the toxicity values are generally based on nominal concentrations<br />

and the endpoints are different. However, from the data listed in Table 17.3.2, it appears that<br />

despite a difference <strong>of</strong> sensibility among species, glycol ethers do not present acute and subacute<br />

ecotoxicological effects to the majority <strong>of</strong> the tested organisms. However, it is interesting<br />

to note that the acetates seem to be more toxic that the corresponding parent<br />

compounds. 10,34,39,51 In mammals, the acute toxicity <strong>of</strong> glycol ethers is also relatively low.<br />

The main target organs are the central nervous and haematopoitic systems. However, on the<br />

basis <strong>of</strong> the available data no significant difference exists between the acute toxicity <strong>of</strong> glycol<br />

ethers and their corresponding acetates. 52<br />

34<br />

27<br />

44

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