Molecular Structure of Nickel chromite (CAS NO.12018-18-7):

IUPAC Name: Dioxido(dioxo)chromium; nickel(2+) 
CAS Registry Number: 12018-18-7 
Molecular Formula: Cr₂NiO₄
Molecular Weight: 226.6832 g/mol
H bond acceptors: 4
H bond donors: 2
Freely Rotating Bonds: 1
Polar Surface Area: 80.26 Å² 
Form: nanopowder
Classification Code of Nickel chromite (CAS NO.12018-18-7): Tumor data

NTP 10th Report on Carcinogens. IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 49 ,1990,p. 49.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 49 ,1990,p. 49.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 49 ,1990,p. 49.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory.

Hazard Codes of Nickel chromite (CAS NO.12018-18-7): Xi
Risk Statements: 36/37/38-43 
R36/37/38: Irritating to eyes, respiratory system and skin. 
R43: May cause sensitization by skin contact.
Safety Statements: 26-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39: Wear suitable gloves and eye/face protection.
WGK Germany: 3
RTECS: GB9000000
Confirmed human carcinogen. When heated to decomposition it emits toxic vapors of nickel and Cr⁻.

ACGIH TLV: TWA 0.1 mg(Ni)/m³; Not Classifiable as a Human Carcinogen

  Nickel chromite (CAS NO.12018-18-7) is also named as Chromiumnickeloxide ; Chromiumnickeloxide(Cr₂NiO₄) ; Nickelchromate(III) ; Nickel chromium oxide ; Nickel chromite ; Dichromium nickel tetraoxide ; Nickel chromium oxide, nanopowder .