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The biodiesel-based flat-rheology drilling fluid system
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JIANG Guancheng,SHI He,HE Yinbo
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Table 4 Biological toxicity of self-made biodiesel and Escaid110
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| Oil | Sample | Number of
Artemia | Dead Artemias
(96 h) | Artemia death
rate (96 h)/% | 96 h LC50/
(mg·L-1) | Self-made
biodiesel | Blank | 40 | 0 | 0 | >1 000 000.0 | Saturated
aqueous solution | 40 | 0 | 0 | | Escaid110 | Blank | 40 | 0 | 0 | 39 765.7-80 585.3 | | 50 times diluted solution | 40 | 4 | 10 |
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