MONTREAL - A man who allegedly threw acid at his girlfriend following a domestic dispute appeared in court today for a bail hearing that was later postponed.

Twenty-seven-year-old Nicolas Stefanatos was in court near Montreal for a bail hearing after allegedly dousing his girlfriend, Tanya St-Arnauld, with a corrosive cleaning product.

Police believe they have identified the substance used in the alleged attack but are awaiting laboratory results to release specifics.

"It's a house cleaning product, a bit like Drano or something," said Const. Martin Simard of the Longueuil police.

The bail hearing was postponed to Sept. 12. Stefanatos faces three charges including aggravated assault, for which the maximum sentence is 14 years.

St-Arnauld is at a Montreal hospital with burns covering 70 per cent of her body. Her face is wrapped in bandages. She has been woken from a medically induced coma and has been able to communicate to some members of her family.

Her injuries are not considered life-threatening.

Police say that after the couple spent an evening with friends, a dispute erupted between Stefanatos and St-Arnauld.

She was allegedly first splattered in ketchup and mustard, then she left the couple's apartment for a few minutes to see friends. The more serious attack allegedly occurred upon her return.

Investigators plan speak to St-Arnauld next week.

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  • An Afghan woman, her face scarred from a

    An Afghan woman, her face scarred from an acid attack, marches with other demonstrators to protest the recent public execution of a young woman for alleged adultery, in Kabul on July 11, 2012. Dozens of Afghan women's rights activists took to the streets July 11 to protest the recent public execution of a young woman for alleged adultery, which was captured in ahorrific video. AFP PHOTO/Massoud HOSSAINI (Photo credit should read MASSOUD HOSSAINI/AFP/GettyImages)

  • Acid attack victim Patricia Lefranc spea

    Acid attack victim Patricia Lefranc speaks to a journalist ahead of the assize trial of Richard Remes, outside the Assize Court of Brussels in Brussels on March 21, 2012. Richard Remes stands accused of attempted murder, after he attacked his ex-girlfriend Patricia Lefranc by throwing acid in her face. AFP PHOTO/ BELGA / DRIES LUYTEN (Photo credit should read DRIES LUYTEN/AFP/Getty Images)

  • Acid attack victim and former Pakistani

    Acid attack victim and former Pakistani soldier Farooq, 24, holds up a portrait of himself before his disfigurement at Basti Maluk village in Multan on March 16, 2012. Acid attacks are among the worst forms of domestic violence in Pakistan and mostly directed at women, who are too often classified as second-class citizens. Victims are disfigured for life and ostracised by society. Pakistan's parliament late last year adopted tougher penalties for the crime, increasing the punishment to between 14 years and life, and a minimum fine of one million rupees (11,000 USD). AFP PHOTO / Bay ISMOYO (Photo credit should read BAY ISMOYO/AFP/Getty Images)

  • Acid attack victim Asiya Bibe, 35, poses

    Acid attack victim Asiya Bibe, 35, poses with a portrait before her disfigurement at her residence at Bahawalpur district in Multan on March 16, 2012. Acid attacks are among the worst forms of domestic violence in Pakistan and mostly directed at women, who are too often classified as second-class citizens. Victims are disfigured for life and ostracised by society. Pakistan's parliament late last year adopted tougher penalties for the crime, increasing the punishment to between 14 years and life, and a minimum fine of one million rupees (11,000 USD). AFP PHOTO / Bay ISMOYO (Photo credit should read BAY ISMOYO/AFP/Getty Images)

  • Shamim (R) and her daugher Safiea (L), b

    Shamim (R) and her daugher Safiea (L), both victims of acid attacks, prepare food for their livestock at Khanwala village in Multan on March 15, 2012. Acid attacks are among the worst forms of domestic violence in Pakistan and mostly directed at women, who are too often classified as second-class citizens. Victims are disfigured for life and ostracised by society. Pakistan's parliament late last year adopted tougher penalties for the crime, increasing the punishment to between 14 years and life, and a minimum fine of one million rupees (11,000 USD). AFP PHOTO / Bay ISMOYO (Photo credit should read BAY ISMOYO/AFP/Getty Images)

  • Acid attack victim Safiea, 18, poses at

    Acid attack victim Safiea, 18, poses at her residence at Khanwala village in Multan on March 15, 2012. Acid attacks are among the worst forms of domestic violence in Pakistan and mostly directed at women, who are too often classified as second-class citizens. Victims are disfigured for life and ostracised by society. Pakistan's parliament late last year adopted tougher penalties for the crime, increasing the punishment to between 14 years and life, and a minimum fine of one million rupees (11,000 USD). AFP PHOTO / Bay ISMOYO (Photo credit should read BAY ISMOYO/AFP/Getty Images)